General

  • Target

    Quotation PDF.bat

  • Size

    659KB

  • Sample

    240429-pdtwesab44

  • MD5

    98b8971518202ded11fdcc151ed02557

  • SHA1

    25628dc2c0a5d72dc211d927a93ce8b267c1c610

  • SHA256

    a689e5f1c8d3a195368dd62cf94953e55abbbb87f75e0363a6d09dfe2bb2bcb9

  • SHA512

    f16b2994661ca330c591400d42c899ede141ef3b5c23fb453c7c8dc1abc8265b2113bd4e0ccc7c4a6d729e6ef603df654298ffb502af5a985c980508034234d1

  • SSDEEP

    12288:aLbB778QvvMehgHaUJ4h+665eeTUPdphLhPf0bPp75mumu98FkEVZ9LfiN3sTxYj:GbBhMCwip65EVzL5ox7r96DFLfc

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      Quotation PDF.bat

    • Size

      659KB

    • MD5

      98b8971518202ded11fdcc151ed02557

    • SHA1

      25628dc2c0a5d72dc211d927a93ce8b267c1c610

    • SHA256

      a689e5f1c8d3a195368dd62cf94953e55abbbb87f75e0363a6d09dfe2bb2bcb9

    • SHA512

      f16b2994661ca330c591400d42c899ede141ef3b5c23fb453c7c8dc1abc8265b2113bd4e0ccc7c4a6d729e6ef603df654298ffb502af5a985c980508034234d1

    • SSDEEP

      12288:aLbB778QvvMehgHaUJ4h+665eeTUPdphLhPf0bPp75mumu98FkEVZ9LfiN3sTxYj:GbBhMCwip65EVzL5ox7r96DFLfc

    • 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