General

  • Target

    3d91f1ea817cbdee9539e9149cdd78740e39de15289bfe17484ff0c4e41def9a

  • Size

    643KB

  • Sample

    240329-bt84dsed96

  • MD5

    6e88e7a47cc1635a2ffcebd6ba893709

  • SHA1

    f3ee105a928b6867907cbacc8c349c0354926a99

  • SHA256

    3d91f1ea817cbdee9539e9149cdd78740e39de15289bfe17484ff0c4e41def9a

  • SHA512

    bcd4b0f2258fc88e5d28e1388ae919ad51cdca055678121b88b1847cb6c2fd9268c732502f3a32727c7a0357e7797741698a3bfdfa8d5f0df783d8675ff9dd02

  • SSDEEP

    12288:VrAo9iHu9NuTGr2kkxwb00QZuToDKVjLZPJPo6EzU7DOtDH:VrAo9iHu9BiV0rTqEjLZPJg6fKj

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ag-tr.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    At.070773

Targets

    • Target

      RFQ__363564546 -PO.exe

    • Size

      689KB

    • MD5

      4c1c86fd8a3fb71ea451791806dbfbe7

    • SHA1

      03fdc8ce41feeac7b7a0d8bf1858f1385272d12b

    • SHA256

      cd477b7ce28707ff2a532ddf8054f743f0a5ac7cf31a01ae96fe55e089f82955

    • SHA512

      0572fe36f35651c367393963ef70b3f3233651551e511b23c29d0dc25ab0c0238a0c77e9062ebf24df0667916f409a69c702fd0a4b2ac5fc1040053e0c5704a2

    • SSDEEP

      12288:t/Q0YOwqOpMVE9MG6ssKHKm0yCOd6CxAMYcEX3Ztw66zUW1q:uO7VssKH/N6zJX3Ztw6x5

    • 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

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

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