General

  • Target

    aada74869baf7a8cf3d9f2fd2092c0e47f007c2c7e8471ceb214365ab9b5ffc3

  • Size

    2.0MB

  • Sample

    240524-w6vrrafb52

  • MD5

    ff9dbd5f43f3e72f9c0c25a7ae0d7c4d

  • SHA1

    0a141629969114684b06b3e3912e9512d1effe67

  • SHA256

    aada74869baf7a8cf3d9f2fd2092c0e47f007c2c7e8471ceb214365ab9b5ffc3

  • SHA512

    fadf1bceaeb066e9ceb5cef3a7b2e8020e9186f0d780a8de7598a07e3eaaaec73a58a053e284fa68243b55d3990b6592dc3307db0b94f520a0541522b4693868

  • SSDEEP

    49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ

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

      aada74869baf7a8cf3d9f2fd2092c0e47f007c2c7e8471ceb214365ab9b5ffc3

    • Size

      2.0MB

    • MD5

      ff9dbd5f43f3e72f9c0c25a7ae0d7c4d

    • SHA1

      0a141629969114684b06b3e3912e9512d1effe67

    • SHA256

      aada74869baf7a8cf3d9f2fd2092c0e47f007c2c7e8471ceb214365ab9b5ffc3

    • SHA512

      fadf1bceaeb066e9ceb5cef3a7b2e8020e9186f0d780a8de7598a07e3eaaaec73a58a053e284fa68243b55d3990b6592dc3307db0b94f520a0541522b4693868

    • SSDEEP

      49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ

    • 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