General

  • Target

    6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4

  • Size

    1.9MB

  • Sample

    240527-2pd1kadh69

  • MD5

    3a760aed3f905fad061bc76c8a65f5bb

  • SHA1

    e723ac950e6f553702cc7281b707d31f86b8db54

  • SHA256

    6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4

  • SHA512

    ad71c45ed493b4001a8bf9c9c99c45cda1e5813518492f75b65d18bb7f4afd50a6ec1fe9629b1e5e64bb29b3f566e0787d356927721338f98fa11f2a3bd59bb2

  • SSDEEP

    49152:CdKfTn6vWJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ

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

      6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4

    • Size

      1.9MB

    • MD5

      3a760aed3f905fad061bc76c8a65f5bb

    • SHA1

      e723ac950e6f553702cc7281b707d31f86b8db54

    • SHA256

      6270fe267f17a442e9d945b844345e23e6134caa8d7a03784406bff581f066e4

    • SHA512

      ad71c45ed493b4001a8bf9c9c99c45cda1e5813518492f75b65d18bb7f4afd50a6ec1fe9629b1e5e64bb29b3f566e0787d356927721338f98fa11f2a3bd59bb2

    • SSDEEP

      49152:CdKfTn6vWJtTF+TxMoxc1TU+j+dAzGwlrh:CdKfTnltIuoITsdZ

    • 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

    • 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