General

  • Target

    8696320777c95a8a6fe780b9be27bfbff0596284ade30fac6010e529009bc2cd

  • Size

    2.0MB

  • Sample

    240520-11va9ahg6s

  • MD5

    52f1e9f3adbe5ee3396f7fae12397c2e

  • SHA1

    235213a7f029dff6e5a5ddf177d253b2abbc6eef

  • SHA256

    8696320777c95a8a6fe780b9be27bfbff0596284ade30fac6010e529009bc2cd

  • SHA512

    0a485700faf35d7f9de81fc579b45e17b5ddfd5a4920838ebaf6c9046ef6d2edef98e34f3e5a296b4d419fcf5c2bc5142a73ec3ae8803a6d7d1999dd35a0e552

  • SSDEEP

    49152:IFno/jf0JtTF+TxMoxc1TU+j+dAzGkiT:IFno/jMtIuoITsdZT

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      8696320777c95a8a6fe780b9be27bfbff0596284ade30fac6010e529009bc2cd

    • Size

      2.0MB

    • MD5

      52f1e9f3adbe5ee3396f7fae12397c2e

    • SHA1

      235213a7f029dff6e5a5ddf177d253b2abbc6eef

    • SHA256

      8696320777c95a8a6fe780b9be27bfbff0596284ade30fac6010e529009bc2cd

    • SHA512

      0a485700faf35d7f9de81fc579b45e17b5ddfd5a4920838ebaf6c9046ef6d2edef98e34f3e5a296b4d419fcf5c2bc5142a73ec3ae8803a6d7d1999dd35a0e552

    • SSDEEP

      49152:IFno/jf0JtTF+TxMoxc1TU+j+dAzGkiT:IFno/jMtIuoITsdZT

    • 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