General

  • Target

    6ddc85bbc79994142576b50229c7d8e9180d997ed1dcee4b4b2b836f5c3c502d

  • Size

    13KB

  • Sample

    240430-b46q1sgf82

  • MD5

    5a91af948082dc50c884f28af34197d6

  • SHA1

    151d368769139f62bd9c7ca092b0c00640b6fba3

  • SHA256

    6ddc85bbc79994142576b50229c7d8e9180d997ed1dcee4b4b2b836f5c3c502d

  • SHA512

    db3cb448012c426fffbded2c8d64f07bf7e7fedca7ce2f052543bc870e3685983b07a2b37edd5ba4124a9ef1edb57d2943e5ee29373b73eb92e26a04a4f68126

  • SSDEEP

    384:yBIxNnVyifSfAjLmsnkd+m4yGt6U3jLxCH+0iRUrVpPgRZVNlb0oSXoj4:ZVfqYjLFkgHyGAU3jLxJ3cVUvQbXR

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot7109324415:AAEtV_HPY0H5mFN38xCDvDx9wl-kKb9q3qg/

Targets

    • Target

      6ddc85bbc79994142576b50229c7d8e9180d997ed1dcee4b4b2b836f5c3c502d

    • Size

      13KB

    • MD5

      5a91af948082dc50c884f28af34197d6

    • SHA1

      151d368769139f62bd9c7ca092b0c00640b6fba3

    • SHA256

      6ddc85bbc79994142576b50229c7d8e9180d997ed1dcee4b4b2b836f5c3c502d

    • SHA512

      db3cb448012c426fffbded2c8d64f07bf7e7fedca7ce2f052543bc870e3685983b07a2b37edd5ba4124a9ef1edb57d2943e5ee29373b73eb92e26a04a4f68126

    • SSDEEP

      384:yBIxNnVyifSfAjLmsnkd+m4yGt6U3jLxCH+0iRUrVpPgRZVNlb0oSXoj4:ZVfqYjLFkgHyGAU3jLxJ3cVUvQbXR

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks