TrojanSpy.Win32.EMOTET.TIABOFHK
Trojan:Win32/Emotet.ARJ!MTB (MICROSOFT), Win32/Emotet.BN trojan (NOD32)
Windows
Threat Type: Trojan Spy
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It executes then deletes itself afterward.
However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
344,166 bytes
EXE
Yes
07 Feb 2020
Connects to URLs/IPs
Arrival Details
This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan Spy drops the following copies of itself into the affected system:
- If sample executed with administrative privileges:
- %System%\{String1}{String2}.exe
- If sample executed without administrative privileges:
- %AppDataLocal%\{String1}{String2}\{String1}{String2}.exe
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It adds the following processes:
- {Malware file path}\{Malware file name}.exe --{8 Random Characters}
- If sample executed with administrative privileges:
- %System%\{String1}{String2}.exe
- %System%\{String1}{String2}.exe --{8 Random Characters}
- If sample executed without administrative privileges:
- %AppDataLocal%\{String1}{String2}\{String1}{String2}.exe
- %AppDataLocal%\{String1}{String2}\{String1}{String2}.exe --{8 Random Characters}
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It creates the following folders:
- If the sample is executed without administrative privileges:
- %AppDataLocal%\{String1}{String2}
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It executes then deletes itself afterward.
It adds the following mutexes to ensure that only one of its copies runs at any one time:
- Global\I{Volume Serial Number}
- Global\M{Volume Serial Number}
Autostart Technique
This Trojan Spy registers itself as a system service to ensure its automatic execution at every system startup by adding the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\{String1}{String2}
ImagePath = %System%\{String1}{String2}.exe
It adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
{String1}{String2} = %AppDataLocal%\{String1}{String2}\{String1}{String2}.exe
Backdoor Routine
This Trojan Spy connects to the following URL(s) to send and receive commands from a remote malicious user:
- {BLOCKED}.{BLOCKED}.76.249:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.55.214:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.130.105:7080/{Random Characters}
- {BLOCKED}.{BLOCKED}.237.248:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.202.216:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.49.98:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.77.83:443/{Random Characters}
- {BLOCKED}.{BLOCKED].194.134:443/{Random Characters}
- {BLOCKED}.{BLOCKED].226.58:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.49.124:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.65.123:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.131.69:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.131.87:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.15.79:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.15.79:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.183.211:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.70.145:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.91.213:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.86.205:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.42.66:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.164.174:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.217.199:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.78.22:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.31.243:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.187.192:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.250.5:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.242.181:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.6.71:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.242.50:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.201.20:7080/{Random Characters}
- {BLOCKED}.{BLOCKED}.229.171:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.243.146:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.53.234:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.171.251:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.57.105:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.225.121:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.83.133:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.235.105:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.80.47:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.80.47:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.219.147:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.70.199:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.114.69:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.5.109:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.180.107:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.10.190:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.205.77:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.174.56:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.51.125:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.136.232:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.139.101:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.19.21:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.120.205:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.145.210:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.197.90:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.215.66:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.216.44:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.141.5:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.236.64:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.113.161:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.206.153:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.23.40:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.134.207:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.197.33:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.49.11:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.95.218:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.11.150:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.44.150:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.246.93:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.155.182:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.123.133:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.206.219:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.2.72:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.217.66:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.111.148:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.6.218:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.7.132:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.246.241:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.5.176:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.241.252:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.242.43:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.153.252:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.248.128:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.25.128:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.215.66:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.10.37:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.26.90:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.43.37:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.160.121:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.139.83:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.185.19:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.24.82:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.70.117:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.126.170:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.132.213:8090/{Random Characters}
- {BLOCKED}.{BLOCKED}.238.69:465/{Random Characters}
- {BLOCKED}.{BLOCKED}.247.171:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.135.237:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.112.237:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.119.180:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.181.54:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.244.182:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.126.169:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.226.104:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.39.231:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.19.82:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.255.77:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.215.206:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.90.5:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.200.4:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.145.225:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.217.124:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.105.242:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.121.202:8090/{Random Characters}
- {BLOCKED}.{BLOCKED}.117.108:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.10.215:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.112.148:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.168.52:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.54.221:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.22.34:443/{Random Characters}
- {BLOCKED}.{BLOCKED}.85.121:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.71.72:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.153.224:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.19.232:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.182.191:8080/{Random Characters}
- {BLOCKED}.{BLOCKED}.123.72:80/{Random Characters}
- {BLOCKED}.{BLOCKED}.185.60:80/{Random Characters}
Information Theft
This Trojan Spy gathers the following data:
- Computer Name
- Process SessionId
- OS Version
- Running Processes
- File CRC
- Processor Architecture
Other Details
This Trojan Spy does the following:
- It creates the service for persistence if the sample is executed with administrative privileges, otherwise it uses an autorun registry.
- It combines any two of the following strings and uses it as its filename "{String1}{String2}":
- acc
- avi
- basic
- bid
- blb
- bta
- cards
- channel
- clr
- cors
- createa
- ctl
- cyan
- dbt
- devices
- digital
- driver
- duck
- dvb
- edge
- elem
- ellipse
- etw
- exce
- format
- guid
- inet
- khmer
- metrics
- mexico
- mfidl
- msg
- msra
- mult
- pal
- pdeft
- pfx
- ptr
- purge
- query
- radio
- restore
- roam
- rtp
- send
- ses
- shext
- shlp
- sidebar
- space
- symbol
- targets
- taskmgr
- thrd
- thunk
- timeout
- url
- violet
- vmd
- vol
- volume
- wce
- wmistr
- wmp
- It deletes outdated copies of itself with a combination of any two of the following strings as its file name:
- acquire
- angle
- appid
- attrib
- boost
- char
- chunker
- compon
- cors
- def
- deploy
- dispid
- fill
- footer
- func
- group
- hal
- hant
- ias
- inbox
- iplk
- ipmi
- leel
- lua
- mailbox
- maker
- malert
- manual
- memo
- methods
- monthly
- more
- msp
- netsh
- nic
- non
- prints
- publish
- raw
- rds
- run
- scan
- sensor
- serial
- shades
- sitka
- smo
- special
- speed
- stuck
- tcg
- texas
- textto
- title
- trns
- wiz
- wow
- wrap
- wsa
- wsat
- xcl
- zap
However, as of this writing, the said sites are inaccessible.
SOLUTION
9.850
15.676.04
05 Feb 2020
15.677.00
06 Feb 2020
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Restart in Safe Mode
Step 4
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- {String1}{String2} = "%AppDataLocal%\{String1}{String2}\{String1}{String2}.exe"
- {String1}{String2} = "%AppDataLocal%\{String1}{String2}\{String1}{String2}.exe"
Step 5
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
- {String1}{String2}
- {String1}{String2}
Step 6
Search and delete these files
- %System%\{String1}{String2}.exe
- %AppDataLocal%\{String1}{String2}\{String1}{String2}.exe
Step 7
Search and delete this folder
- %AppDataLocal%\{String1}{String2}
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TrojanSpy.Win32.EMOTET.TIABOFHK. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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