General

  • Target

    2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a

  • Size

    771KB

  • Sample

    240329-bn1vtsec47

  • MD5

    1433df7a0c7d30eccc2973886763dd3c

  • SHA1

    5524fd6fad6327287aefb807db8aca267ef81b23

  • SHA256

    2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a

  • SHA512

    c717cde6ebb72c81dd7af08aec4e18a99c667481746618b6e6122dc88d90f9c0e687e8e31c77d730b9fdabac25346bf716fc57712bfee9ae114be56c2030449f

  • SSDEEP

    12288:t7spRsB6mNbI4sdgeMPHqwIR8jfkS5yZ8mZOduX6Pf/Jx8RTVUizeV:GpRsv5I4sivPARIJ50ROdA6PXkv

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6510566783:AAEqx5Uod2gO5hHDZ1xznAnHyO5uFneWegY/

Targets

    • Target

      2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a

    • Size

      771KB

    • MD5

      1433df7a0c7d30eccc2973886763dd3c

    • SHA1

      5524fd6fad6327287aefb807db8aca267ef81b23

    • SHA256

      2f441107368afa9bd9d536d2d3f79284af91ae4e6568c93b170ad3aaa243205a

    • SHA512

      c717cde6ebb72c81dd7af08aec4e18a99c667481746618b6e6122dc88d90f9c0e687e8e31c77d730b9fdabac25346bf716fc57712bfee9ae114be56c2030449f

    • SSDEEP

      12288:t7spRsB6mNbI4sdgeMPHqwIR8jfkS5yZ8mZOduX6Pf/Jx8RTVUizeV:GpRsv5I4sivPARIJ50ROdA6PXkv

    • 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