General

  • Target

    051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97

  • Size

    723KB

  • Sample

    240328-b4waaaad79

  • MD5

    27f2073815cbd3a3cf5f398f91d8a681

  • SHA1

    c2ee2f719d3669758321b8f173e6fb90a70cd939

  • SHA256

    051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97

  • SHA512

    7380f0dd668528ecc65d84bdd8f6375210fa0ed7ea726da1e5f48c5322c66d9c67e69a45d72db74a01a3eeb9908c0ed88fe0efbe80553b77b33f95207580a2b9

  • SSDEEP

    12288:HCpiAa5WQTcmVJUp4WKiZh8ea0cklBo/pLD4UhO+:ipiAtHZy+Bo/N4O

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6199620468:AAFwa9UqxhltZEilbb7Spqja5qgYWeoM_is/

Targets

    • Target

      051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97

    • Size

      723KB

    • MD5

      27f2073815cbd3a3cf5f398f91d8a681

    • SHA1

      c2ee2f719d3669758321b8f173e6fb90a70cd939

    • SHA256

      051293df4e318fa67f3075d0a258283885b1c8cf04a32d028de131903d049e97

    • SHA512

      7380f0dd668528ecc65d84bdd8f6375210fa0ed7ea726da1e5f48c5322c66d9c67e69a45d72db74a01a3eeb9908c0ed88fe0efbe80553b77b33f95207580a2b9

    • SSDEEP

      12288:HCpiAa5WQTcmVJUp4WKiZh8ea0cklBo/pLD4UhO+:ipiAtHZy+Bo/N4O

    • 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