General

  • Target

    71840cdbbc1ce602a11c0f59ca8b61176d0f1fc6c73a64aecfd1b3f4d9026582

  • Size

    688KB

  • Sample

    240330-bzag1seb4s

  • MD5

    699d6146a8c0910f57449785f7138a5a

  • SHA1

    b4bf00d7e3b6f107558ca621fa14f0cd2a313684

  • SHA256

    71840cdbbc1ce602a11c0f59ca8b61176d0f1fc6c73a64aecfd1b3f4d9026582

  • SHA512

    ec50711c28ca0edb266e6740b722a1b4c48a8f3337e1506a12b2ebc0198678412e2f60002e1223e1a8177a4e06717b7d3fff93610dabde5ef140b4588eb0e222

  • SSDEEP

    12288:XALK1eoPVyKi3DxoX+YokZ2+D/ouR1eJF/pcI0+KGg6fE:Qi/G3t6+Y32i/oualTVdfE

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6562689250:AAHKeJIrACTzsm0Y0MY4lux3WJo_6q58UEo/

Targets

    • Target

      71840cdbbc1ce602a11c0f59ca8b61176d0f1fc6c73a64aecfd1b3f4d9026582

    • Size

      688KB

    • MD5

      699d6146a8c0910f57449785f7138a5a

    • SHA1

      b4bf00d7e3b6f107558ca621fa14f0cd2a313684

    • SHA256

      71840cdbbc1ce602a11c0f59ca8b61176d0f1fc6c73a64aecfd1b3f4d9026582

    • SHA512

      ec50711c28ca0edb266e6740b722a1b4c48a8f3337e1506a12b2ebc0198678412e2f60002e1223e1a8177a4e06717b7d3fff93610dabde5ef140b4588eb0e222

    • SSDEEP

      12288:XALK1eoPVyKi3DxoX+YokZ2+D/ouR1eJF/pcI0+KGg6fE:Qi/G3t6+Y32i/oualTVdfE

    • 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.

    • 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

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

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