General

  • Target

    new order 00041221.exe

  • Size

    729KB

  • Sample

    210727-gtsax44rxe

  • MD5

    ffe30c4ac40f0e43147b0ffe6ede3e3f

  • SHA1

    bde322fd8135752b32f0301887e25295a08f2b44

  • SHA256

    9f34067bfd42e0ddfff753c0e045a4a1df331d738ec6946ed35531f8cf33440b

  • SHA512

    1e70a0a0fb23c88f49fc702127e4d826454d4406ebee05d07ef341283c57fb1e12094ce3c4fa54e328771366dadc0935bf15d20a0d585783c0afe0002c1d7b2c

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.marcer.com.tr
  • Port:
    587
  • Username:
    muhasebe@marcer.com.tr
  • Password:
    mar1453

Targets

    • Target

      new order 00041221.exe

    • Size

      729KB

    • MD5

      ffe30c4ac40f0e43147b0ffe6ede3e3f

    • SHA1

      bde322fd8135752b32f0301887e25295a08f2b44

    • SHA256

      9f34067bfd42e0ddfff753c0e045a4a1df331d738ec6946ed35531f8cf33440b

    • SHA512

      1e70a0a0fb23c88f49fc702127e4d826454d4406ebee05d07ef341283c57fb1e12094ce3c4fa54e328771366dadc0935bf15d20a0d585783c0afe0002c1d7b2c

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • AgentTesla Payload

    • Drops file in Drivers directory

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks