General

  • Target

    0c9d401e9b393d2e7e2e3c727ba6e3e83cde22df260731879a4e5b0350929574.exe

  • Size

    355KB

  • Sample

    240526-skqn5aaf51

  • MD5

    d79b788762c6435ae9f599743f9f482d

  • SHA1

    4d96933a654c426776b30b57b49227e812b3d231

  • SHA256

    0c9d401e9b393d2e7e2e3c727ba6e3e83cde22df260731879a4e5b0350929574

  • SHA512

    e6e3a3be1c171b38a9b167291d2f875c169c04b0aefe7425092301cdb694c2c052fdc30e770634634c82ca3cca76507e20d0aff1ea6db9076299e10935bb39f9

  • SSDEEP

    6144:hKrTm/Wop3oiUklM540oF1zTuoZxFrI/l2k9Joup1JgHEa23sw6ac:8rTm/WohfdFNhhGpIOcYc

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      0c9d401e9b393d2e7e2e3c727ba6e3e83cde22df260731879a4e5b0350929574.exe

    • Size

      355KB

    • MD5

      d79b788762c6435ae9f599743f9f482d

    • SHA1

      4d96933a654c426776b30b57b49227e812b3d231

    • SHA256

      0c9d401e9b393d2e7e2e3c727ba6e3e83cde22df260731879a4e5b0350929574

    • SHA512

      e6e3a3be1c171b38a9b167291d2f875c169c04b0aefe7425092301cdb694c2c052fdc30e770634634c82ca3cca76507e20d0aff1ea6db9076299e10935bb39f9

    • SSDEEP

      6144:hKrTm/Wop3oiUklM540oF1zTuoZxFrI/l2k9Joup1JgHEa23sw6ac:8rTm/WohfdFNhhGpIOcYc

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • 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 cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks