General

  • Target

    fc24a8bf64db46711cb8ca985940dd8459aedf3a3438dec05c54db385502515d

  • Size

    822KB

  • Sample

    240427-b37xpagd82

  • MD5

    9b7f6195f583e5ca792a4dec0b2c74ac

  • SHA1

    86d5e0e2bfe0ab5c13c533d3ef6fb52d9706ad9c

  • SHA256

    fc24a8bf64db46711cb8ca985940dd8459aedf3a3438dec05c54db385502515d

  • SHA512

    444bb4caa43d0520210163a0ccb44a45931d5e0973b69adabfed09c9ff4ff86d0e6ba12a932316df04b1c3254bb7abbab63b13ffe24e669f01fc8a5777ecc1ac

  • SSDEEP

    24576:R4PjKr5BNDSwrZPMibcPbQZkRPt0e/yBW6:qk5BNn9PM2cP/x/yBW

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      fc24a8bf64db46711cb8ca985940dd8459aedf3a3438dec05c54db385502515d

    • Size

      822KB

    • MD5

      9b7f6195f583e5ca792a4dec0b2c74ac

    • SHA1

      86d5e0e2bfe0ab5c13c533d3ef6fb52d9706ad9c

    • SHA256

      fc24a8bf64db46711cb8ca985940dd8459aedf3a3438dec05c54db385502515d

    • SHA512

      444bb4caa43d0520210163a0ccb44a45931d5e0973b69adabfed09c9ff4ff86d0e6ba12a932316df04b1c3254bb7abbab63b13ffe24e669f01fc8a5777ecc1ac

    • SSDEEP

      24576:R4PjKr5BNDSwrZPMibcPbQZkRPt0e/yBW6:qk5BNn9PM2cP/x/yBW

    • AgentTesla

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

    • 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

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

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