General

  • Target

    0651fc456ba381f5e657be0f88446b9e5a285fafe3b57ff06a7f45e4f7cffe95

  • Size

    2.4MB

  • Sample

    240524-k6zvxscc2w

  • MD5

    22ce9bb64266a6734bb01b59a0d0f3b1

  • SHA1

    8ae789aa8fdbb522ae55442fb7b5db6a2aec402f

  • SHA256

    0651fc456ba381f5e657be0f88446b9e5a285fafe3b57ff06a7f45e4f7cffe95

  • SHA512

    3881dd0075af8af2ee3104e691a04b54c676a9f6f4ddf008f46845571480af47f22ca334237c1d194346dbf6c6b4ed5442ac7bdc2929dc6e8821a289a4859293

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUCJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dCtIuoITsdZ

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

      0651fc456ba381f5e657be0f88446b9e5a285fafe3b57ff06a7f45e4f7cffe95

    • Size

      2.4MB

    • MD5

      22ce9bb64266a6734bb01b59a0d0f3b1

    • SHA1

      8ae789aa8fdbb522ae55442fb7b5db6a2aec402f

    • SHA256

      0651fc456ba381f5e657be0f88446b9e5a285fafe3b57ff06a7f45e4f7cffe95

    • SHA512

      3881dd0075af8af2ee3104e691a04b54c676a9f6f4ddf008f46845571480af47f22ca334237c1d194346dbf6c6b4ed5442ac7bdc2929dc6e8821a289a4859293

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUCJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dCtIuoITsdZ

    • 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 Enterprise v15

Tasks