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TSPY_DYRE.SMN2

November 02, 2015
 Analysis by: RonJay Kristoffer Caragay
 ALIASES:

Spyware.Dyre (Malwarebytes);

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This spyware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It deletes the initially executed copy of itself.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

EXE

Initial Samples Received Date:

02 Oct 2015

Arrival Details

This spyware 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 spyware drops the following copies of itself into the affected system:

  • %AppDataLocal%\{random filename}.exe (for Windows Vista and above)
  • %Windows%\{random filename}.exe (for Windows XP and below)

(Note: %AppDataLocal% is the Application Data folder found in Local Settings, where it is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Dropping Routine

This spyware drops the following files:

  • %System%\config\systemprofile\Application Data\{random filename} (for Windows XP and below)
  • %AppDataLocal%\{random filename} (for Windows Vista and above)
  • %Windows%\Tasks\{random filename}.job

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %AppDataLocal% is the Application Data folder found in Local Settings, where it is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Other Details

This spyware connects to the following possibly malicious URL:

  • http://{BLOCKED}.{BLOCKED}.220.8:443
  • http://{BLOCKED}.{BLOCKED}.226.85:443
  • http://{BLOCKED}.{BLOCKED}.63.98:443
  • http://{BLOCKED}.{BLOCKED}.73.130:443
  • http://{BLOCKED}.{BLOCKED}.250.245:443
  • http://{BLOCKED}.{BLOCKED}.48.147:443
  • http://{BLOCKED}.{BLOCKED}.49.139:443
  • http://{BLOCKED}.{BLOCKED}.49.162:443
  • http://{BLOCKED}.{BLOCKED}.166.94:4443
  • http://{BLOCKED}.{BLOCKED}.48.79:443
  • http://{BLOCKED}.{BLOCKED}.50.124:4443
  • http://{BLOCKED}.{BLOCKED}.201.9:443
  • http://{BLOCKED}.{BLOCKED}.153.202:443
  • http://{BLOCKED}.{BLOCKED}.91.90:443
  • http://{BLOCKED}.{BLOCKED}.64.35:4443
  • http://{BLOCKED}.{BLOCKED}.84.55:443
  • http://{BLOCKED}.{BLOCKED}.142.66:443
  • http://{BLOCKED}.{BLOCKED}.194.101:4443
  • http://{BLOCKED}.{BLOCKED}.38.100:443
  • http://{BLOCKED}.{BLOCKED}.154.180:4443
  • http://{BLOCKED}.{BLOCKED}.77.76:443
  • http://{BLOCKED}.{BLOCKED}.104.102:443
  • http://{BLOCKED}.{BLOCKED}.34.245:443
  • http://{BLOCKED}.{BLOCKED}.171.216:443
  • http://{BLOCKED}.{BLOCKED}.58.42:4443
  • http://{BLOCKED}.{BLOCKED}.60.93:4443
  • http://{BLOCKED}.{BLOCKED}.135.106:4443
  • http://{BLOCKED}.{BLOCKED}.179.197:443
  • http://{BLOCKED}.{BLOCKED}.101.2:4443
  • http://{BLOCKED}.{BLOCKED}.204.37:443
  • http://{BLOCKED}.{BLOCKED}.165.182:443
  • http://{BLOCKED}.{BLOCKED}.237.115:443
  • http://{BLOCKED}.{BLOCKED}.143.60:443
  • http://{BLOCKED}.{BLOCKED}.146.107:4443
  • http://{BLOCKED}.{BLOCKED}.146.67:4443
  • http://{BLOCKED}.{BLOCKED}.147.103:4443
  • http://{BLOCKED}.{BLOCKED}.156.105:4443
  • http://{BLOCKED}.{BLOCKED}.156.165:443
  • http://{BLOCKED}.{BLOCKED}.156.216:4443
  • http://{BLOCKED}.{BLOCKED}.57.164:4443
  • http://{BLOCKED}.{BLOCKED}.228.117:4443
  • http://{BLOCKED}.{BLOCKED}.174.25:443
  • http://{BLOCKED}.{BLOCKED}.9.55:443
  • http://{BLOCKED}.{BLOCKED}.4.60:443
  • http://{BLOCKED}.{BLOCKED}.176.230:4443
  • http://{BLOCKED}.{BLOCKED}.191.170:443
  • http://{BLOCKED}.{BLOCKED}.63.207:443
  • http://{BLOCKED}.{BLOCKED}.51.115:4443
  • http://{BLOCKED}.{BLOCKED}.116.76:443
  • http://{BLOCKED}.{BLOCKED}.45.149:443
  • http://{BLOCKED}.{BLOCKED}.45.40:443
  • http://{BLOCKED}.{BLOCKED}.241.26:443
  • http://{BLOCKED}.{BLOCKED}.244.187:443

It deletes the initially executed copy of itself

  SOLUTION

Minimum Scan Engine:

9.80

FIRST VSAPI PATTERN FILE:

11.954.07

FIRST VSAPI PATTERN DATE:

03 Oct 2015

VSAPI OPR PATTERN File:

11.955.00

VSAPI OPR PATTERN Date:

03 Oct 2015

NOTES:

Trend customers:

    Keep your pattern and scan engine files updated. Trend Micro antivirus software can clean or remove most types of computer threats. Malware, though, such as Trojans, scripts, overwriting viruses and joke programs which are identified as uncleanable, should simply be deleted.

All Internet users:

  • Use HouseCall - the Trend Micro online threat scanner to check for malware that may already be on your PC.
  • Catch malware/grayware before they affect your PC or network. Secure your Web world with Trend Micro products that offer the best anti-threat and content security solutions for home users, corporate users, and ISPs. Go here for more information on Trend Micro products that fit your needs.


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