General

  • Target

    bf6c456d32d298f22b4c4d445053369213fe440d18bf8f8e8a64d7d90d824ba0.exe

  • Size

    2.0MB

  • Sample

    240522-xsp5sada7s

  • MD5

    184794a254275ab07858b1fc6eecf62c

  • SHA1

    8b4d9f0f0bd7153018bb447269bf9806895aaef6

  • SHA256

    bf6c456d32d298f22b4c4d445053369213fe440d18bf8f8e8a64d7d90d824ba0

  • SHA512

    b86fc5eaaaebbb6b4a9165a2dd8ed158a69bdb42fa8337d2734208bb66ac649627b5900d3f1741a018e373b41620acccd41d29541df15edcaf41cbd2273ef551

  • SSDEEP

    49152:7QzHt472DNJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtztIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      bf6c456d32d298f22b4c4d445053369213fe440d18bf8f8e8a64d7d90d824ba0.exe

    • Size

      2.0MB

    • MD5

      184794a254275ab07858b1fc6eecf62c

    • SHA1

      8b4d9f0f0bd7153018bb447269bf9806895aaef6

    • SHA256

      bf6c456d32d298f22b4c4d445053369213fe440d18bf8f8e8a64d7d90d824ba0

    • SHA512

      b86fc5eaaaebbb6b4a9165a2dd8ed158a69bdb42fa8337d2734208bb66ac649627b5900d3f1741a018e373b41620acccd41d29541df15edcaf41cbd2273ef551

    • SSDEEP

      49152:7QzHt472DNJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHtztIuoITsdZ

    • 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.

    • 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