General

  • Target

    237331785cd2b1cd6dd2796c5b8494a6ba523f19b1236366bb58e46fe301c4f1

  • Size

    666KB

  • Sample

    240523-b7wp8ahd82

  • MD5

    a6bc6bce06415a0e0521552c83a1a056

  • SHA1

    78ac06f9b255cd527a81acf5f2a58730fb1f7240

  • SHA256

    237331785cd2b1cd6dd2796c5b8494a6ba523f19b1236366bb58e46fe301c4f1

  • SHA512

    f9ca3ad37732c05cbcf0d00581b87829d9381c18dbbc6798592cf3856513fa7e914f3c3a184efae60bbee76d743c3f4478592cd0d0da89f500c975d0299c6be5

  • SSDEEP

    12288:Sn2vyqCT693Ax2LFJ3xoUM7NilLv912x8o/+BE/7orHrAB5mej4s:SiPCT69Qx2hBx47aPoTSEjOHrA/y

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ap-northeast-1.sftpcloud.io
  • Port:
    21
  • Username:
    d6b6a1a5e9a949a5971882ecf02f4af1
  • Password:
    TsJVvHLXmBg0sjpz7yDI98OWAVbgfcmY

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ap-northeast-1.sftpcloud.io
  • Port:
    21
  • Username:
    d6b6a1a5e9a949a5971882ecf02f4af1
  • Password:
    TsJVvHLXmBg0sjpz7yDI98OWAVbgfcmY

Targets

    • Target

      237331785cd2b1cd6dd2796c5b8494a6ba523f19b1236366bb58e46fe301c4f1

    • Size

      666KB

    • MD5

      a6bc6bce06415a0e0521552c83a1a056

    • SHA1

      78ac06f9b255cd527a81acf5f2a58730fb1f7240

    • SHA256

      237331785cd2b1cd6dd2796c5b8494a6ba523f19b1236366bb58e46fe301c4f1

    • SHA512

      f9ca3ad37732c05cbcf0d00581b87829d9381c18dbbc6798592cf3856513fa7e914f3c3a184efae60bbee76d743c3f4478592cd0d0da89f500c975d0299c6be5

    • SSDEEP

      12288:Sn2vyqCT693Ax2LFJ3xoUM7NilLv912x8o/+BE/7orHrAB5mej4s:SiPCT69Qx2hBx47aPoTSEjOHrA/y

    • AgentTesla

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

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • 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 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks