General

  • Target

    5e2d565ced9589168469f45e1bf9f427747955b18098e2731c1572a4c1a04a99

  • Size

    2.0MB

  • Sample

    240523-actfyaec36

  • MD5

    f6c82697c671911925eee19130f79f30

  • SHA1

    24a5da82fa4f8fa33cc384a341438f67e7692e70

  • SHA256

    5e2d565ced9589168469f45e1bf9f427747955b18098e2731c1572a4c1a04a99

  • SHA512

    8557e8dd52f7e457db421527984929c61a36c6c01cecc1ea483706dcd6fa842150fcde11ed00810e7ccf3a60a8c849dcc9d7a8988f1b70b4b3a55ae9f2380b31

  • SSDEEP

    49152:IFno/jfAJtTF+TxMoxc1TU+j+dAzGkiT:IFno/jYtIuoITsdZT

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      5e2d565ced9589168469f45e1bf9f427747955b18098e2731c1572a4c1a04a99

    • Size

      2.0MB

    • MD5

      f6c82697c671911925eee19130f79f30

    • SHA1

      24a5da82fa4f8fa33cc384a341438f67e7692e70

    • SHA256

      5e2d565ced9589168469f45e1bf9f427747955b18098e2731c1572a4c1a04a99

    • SHA512

      8557e8dd52f7e457db421527984929c61a36c6c01cecc1ea483706dcd6fa842150fcde11ed00810e7ccf3a60a8c849dcc9d7a8988f1b70b4b3a55ae9f2380b31

    • SSDEEP

      49152:IFno/jfAJtTF+TxMoxc1TU+j+dAzGkiT:IFno/jYtIuoITsdZT

    • 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

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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 Enterprise v15

Tasks