General

  • Target

    PO-000161.exe

  • Size

    870KB

  • Sample

    221207-rfb5hafb32

  • MD5

    909b1743dc6e451ab7db216f26b52bde

  • SHA1

    7153ad37069cc0b9fc26b59f3e4e479916c72584

  • SHA256

    e8a5765337996b5641061728075dc4432dc4809ca48e25d624f63e33962cbef7

  • SHA512

    331adcc0f7bb9826d21f084b69a51291c8414a49d087d2e63564c555f69c53f1a6ecaa0e8eefda4c864866e7b7561ceb4bd165364cd67694e1f3fa2e534b3996

  • SSDEEP

    12288:coQgKZ/nXt7virmWhlGLaQYIOjGBhYMMobm1SN70v1GyxaW4bgIp9q6oyu8WmJd:RjGBhYMMosE7w1OW4b4mu8Hawu

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      PO-000161.exe

    • Size

      870KB

    • MD5

      909b1743dc6e451ab7db216f26b52bde

    • SHA1

      7153ad37069cc0b9fc26b59f3e4e479916c72584

    • SHA256

      e8a5765337996b5641061728075dc4432dc4809ca48e25d624f63e33962cbef7

    • SHA512

      331adcc0f7bb9826d21f084b69a51291c8414a49d087d2e63564c555f69c53f1a6ecaa0e8eefda4c864866e7b7561ceb4bd165364cd67694e1f3fa2e534b3996

    • SSDEEP

      12288:coQgKZ/nXt7virmWhlGLaQYIOjGBhYMMobm1SN70v1GyxaW4bgIp9q6oyu8WmJd:RjGBhYMMosE7w1OW4b4mu8Hawu

    • 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

    • 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

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

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