General

  • Target

    8375d96ed89a82dbb94cb57a1da79ee5f7b43bf004e53c0e66797b0ea7057b1c

  • Size

    1.6MB

  • Sample

    240612-dstcnazckc

  • MD5

    856330749cbaa8176b86bbff775bc69b

  • SHA1

    7f52aebfba0c2bc372e2f3d9447d4312ded3c11f

  • SHA256

    8375d96ed89a82dbb94cb57a1da79ee5f7b43bf004e53c0e66797b0ea7057b1c

  • SHA512

    02d06fc6c4a225827eea7b23f20210fc037825ffa74d4493c7bbf6b2c50c67b6599b50680ba865fd21c7216dca08de47066143767c3b8e18a8fd267bf13a06b6

  • SSDEEP

    24576:spM5863IGfTAVpalB4UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B4UkxVVChjHZQs

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

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

Targets

    • Target

      8375d96ed89a82dbb94cb57a1da79ee5f7b43bf004e53c0e66797b0ea7057b1c

    • Size

      1.6MB

    • MD5

      856330749cbaa8176b86bbff775bc69b

    • SHA1

      7f52aebfba0c2bc372e2f3d9447d4312ded3c11f

    • SHA256

      8375d96ed89a82dbb94cb57a1da79ee5f7b43bf004e53c0e66797b0ea7057b1c

    • SHA512

      02d06fc6c4a225827eea7b23f20210fc037825ffa74d4493c7bbf6b2c50c67b6599b50680ba865fd21c7216dca08de47066143767c3b8e18a8fd267bf13a06b6

    • SSDEEP

      24576:spM5863IGfTAVpalB4UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B4UkxVVChjHZQs

    • 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.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • 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

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks