General

  • Target

    SecuriteInfo.com.Trojan.Inject4.48217.30341.13985.exe

  • Size

    927KB

  • Sample

    221206-g8bz4abh84

  • MD5

    f41c79d711133f5df0489e2e624ea8a6

  • SHA1

    aeca8f699d3363a33fa469244026904008a6adbe

  • SHA256

    e0841ea0f3c64de1b5135c69a841cf633fb6c1b34642992cd3474cfe53c81f7d

  • SHA512

    9320154e9927778c97e1e819d1c642e792e70a47439670a7fa86ed913b25da17f68da6733720c09d086a212b186c2c0d2da6eaaac10d15139e06c7788b5f47d7

  • SSDEEP

    12288:uc+iCP6hW5EQz8SioOhok4DhArZJ3WOYnjEXcR3k5flwj2bO6jmangKZ/nXt7vie:F+NY4E6VOhwS1GjJ3k5fWySw

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.deconbrio.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    Aa5nm2gb@kgb.

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.deconbrio.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    Aa5nm2gb@kgb.

Targets

    • Target

      SecuriteInfo.com.Trojan.Inject4.48217.30341.13985.exe

    • Size

      927KB

    • MD5

      f41c79d711133f5df0489e2e624ea8a6

    • SHA1

      aeca8f699d3363a33fa469244026904008a6adbe

    • SHA256

      e0841ea0f3c64de1b5135c69a841cf633fb6c1b34642992cd3474cfe53c81f7d

    • SHA512

      9320154e9927778c97e1e819d1c642e792e70a47439670a7fa86ed913b25da17f68da6733720c09d086a212b186c2c0d2da6eaaac10d15139e06c7788b5f47d7

    • SSDEEP

      12288:uc+iCP6hW5EQz8SioOhok4DhArZJ3WOYnjEXcR3k5flwj2bO6jmangKZ/nXt7vie:F+NY4E6VOhwS1GjJ3k5fWySw

    • 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 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.

    • Accesses Microsoft Outlook profiles

    • 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 v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks