General

  • Target

    abcba065d8902f508e86614c9c0d16289dec443f64fb412bd040641473488ed8

  • Size

    561KB

  • Sample

    220520-2a9hxsfad3

  • MD5

    f4e3ce75bc7891fea6a83a55bc9fa691

  • SHA1

    b9594975367f1d2315dac869f06c036b43f7d593

  • SHA256

    abcba065d8902f508e86614c9c0d16289dec443f64fb412bd040641473488ed8

  • SHA512

    dd462e273a5d5b40144182ea276e8c939d45a4593a480f57743e6abf9552e115634bf2487c3f3140922b26ac2ea89ede74eca0f9ec4ae5ae6af41664a1a7e776

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.coffiices.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    E5%lCvZ{l[6FG

Targets

    • Target

      Bank Report.pdf.exe

    • Size

      622KB

    • MD5

      609427cc5598d5183654e09fc7312067

    • SHA1

      da0d6d1050134e74e291bfd4f95069af2d661e2b

    • SHA256

      dbf694fcd9a32d44e248d929d8e76c8c2e64645f591f604be81f4fe46fde7945

    • SHA512

      5a99a050270dd95ef835447a39bb2f604de9bc8861f8b25df621e8be32dbdc4c78ba4dbfa980bb452a353db64da562ebe5f18a4b2728922ede72536b25317be3

    • AgentTesla

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

    • AgentTesla Payload

    • Drops file in Drivers directory

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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

2
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks