TrojanSpy.Win64.EMOTET.FCB

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 commands from a remote malicious user, effectively compromising the affected system.

It deletes the initially executed copy of itself.

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 and executes them:

• If executed with administrator rights:
  • %System%\{Random Characters}\{Random Characters}.dll
• If executed without administrator rights:
  • %AppDataLocal%\{Random Characters}\{Random Characters}.dll

(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:

• If executed with administrator rights:
  • %System%\regsvr32.exe "%System%\{Random Characters}\{Random Characters}.dll"
• If executed without administrator rights:
  • %System%\regsvr32.exe "%AppDataLocal%\{Random Characters}\{Random Characters}.dll"

(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 executed with administrator rights:
  • %System%\{Random Characters}
• If executed without administrator rights:
  • %AppDataLocal%\{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).)

Backdoor Routine

This Trojan Spy executes the following commands from a remote malicious user:

• Download and execute code in memory

Information Theft

This Trojan Spy gathers the following data:

• Computer Name
• Volume Serial Number
• OS Information
• Process ID
• Machine Time zone

Other Details

This Trojan Spy does the following:

• It receives commands and sends encrypted gathered information to the following URLs via HTTP/HTTPS POST by storing it on HTTP POST Headers.
  • http://{BLOCKED}.{BLOCKED}.199.165:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.160.88:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.8.30:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.39.149:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.131.28:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.88.10:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.226.75:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.20.25:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.28.199:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.212.5:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.242.26:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.117.186:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.227.76:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.188.93:443/{random characters}
  • https://{BLOCKED}.{BLOCKED}.126.41:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.166.154:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.146.25:7080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.5.27:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.253.162:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.240.217:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.150.244:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.166.162:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.205.3:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.232.124:443/{random characters}
  • https://{BLOCKED}.{BLOCKED}.159.50:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.201.15:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.35.198:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.221.146:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.146.47:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.155.143:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.202.34:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.45.86:4143/{random characters}
  • http://{BLOCKED}.{BLOCKED}.0.91:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.222.65:443/{random characters}
  • https://{BLOCKED}.{BLOCKED}.143.56:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.32.31:7080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.28.33:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.2.232:8080/{random characters}
  • https://{BLOCKED}.{BLOCKED}.75.120:443/{random characters}
  • https://{BLOCKED}.{BLOCKED}.201.2:443/{random characters}
  • http://{BLOCKED}.{BLOCKED}.103.152:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.142.56:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.196.120:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.99.3:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.156.166:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.193.249:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.227.137:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.135.165:8080/{random characters}
  • http://{BLOCKED}.{BLOCKED}.21.224:8080/{random characters}

It deletes the initially executed copy of itself.