General

  • Target

    a73c01c2b33555a8fe1fa7f3d2900d13480eab275117bf3ed8be18fd85ad7afd

  • Size

    1.6MB

  • Sample

    240611-tb2wgasdqa

  • MD5

    0ae9deb61884a8690d0fc2d6a212555c

  • SHA1

    fc44e15ad4388f23cafb4049707429ee11c3af38

  • SHA256

    a73c01c2b33555a8fe1fa7f3d2900d13480eab275117bf3ed8be18fd85ad7afd

  • SHA512

    636981119bc97db58d601136e4a80878c1a48b20de9d608d68682d1e20999478ea8162c1cf0360d9e2c4165e565e2cc07d31615ce9d37dec8f19ad81e567c98e

  • SSDEEP

    24576:spM5863IGfTAVpalB6UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B6UkxVVChjHZQs

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

      a73c01c2b33555a8fe1fa7f3d2900d13480eab275117bf3ed8be18fd85ad7afd

    • Size

      1.6MB

    • MD5

      0ae9deb61884a8690d0fc2d6a212555c

    • SHA1

      fc44e15ad4388f23cafb4049707429ee11c3af38

    • SHA256

      a73c01c2b33555a8fe1fa7f3d2900d13480eab275117bf3ed8be18fd85ad7afd

    • SHA512

      636981119bc97db58d601136e4a80878c1a48b20de9d608d68682d1e20999478ea8162c1cf0360d9e2c4165e565e2cc07d31615ce9d37dec8f19ad81e567c98e

    • SSDEEP

      24576:spM5863IGfTAVpalB6UfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6B6UkxVVChjHZQs

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks