General

  • Target

    9072035dca15fb9fb6a0bc30888d08ca111fde17db42133c2f15436a6f991679

  • Size

    2.0MB

  • Sample

    240525-jz9k4sbd49

  • MD5

    a6443f57927c6061c46829c422241ff2

  • SHA1

    adae6e3b1f5d325e6cc59fc1571e65173ae9298f

  • SHA256

    9072035dca15fb9fb6a0bc30888d08ca111fde17db42133c2f15436a6f991679

  • SHA512

    6d1d0f0c251d7a589677fa0fd6ce8edcb7b563c69e9c19802bb39b5605c7d23a93095f18e6639c664e4bbc295a688be4f958d12f469fa7effba56b077b244b37

  • SSDEEP

    49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ

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

      9072035dca15fb9fb6a0bc30888d08ca111fde17db42133c2f15436a6f991679

    • Size

      2.0MB

    • MD5

      a6443f57927c6061c46829c422241ff2

    • SHA1

      adae6e3b1f5d325e6cc59fc1571e65173ae9298f

    • SHA256

      9072035dca15fb9fb6a0bc30888d08ca111fde17db42133c2f15436a6f991679

    • SHA512

      6d1d0f0c251d7a589677fa0fd6ce8edcb7b563c69e9c19802bb39b5605c7d23a93095f18e6639c664e4bbc295a688be4f958d12f469fa7effba56b077b244b37

    • SSDEEP

      49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ

    • 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