General

  • Target

    ef5c02187889780f0d5961b38166c636c8684d373b7c83383224a4bbfd47cb3d

  • Size

    2.4MB

  • Sample

    240523-nbjr1aea9s

  • MD5

    d1d012998b1398dee03a07c4863551a8

  • SHA1

    065dcbc0b8cf2ccc48f8f874ffff43c737cf414f

  • SHA256

    ef5c02187889780f0d5961b38166c636c8684d373b7c83383224a4bbfd47cb3d

  • SHA512

    6aad7334ee333b506710e1f84d58136345791fefa0dccd148aaf1839985b929e58e28b17f41ab8592bdee9341e95bc4f5ffbced09e40fd824ca6c90090dc7f59

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUCJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dCtIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      ef5c02187889780f0d5961b38166c636c8684d373b7c83383224a4bbfd47cb3d

    • Size

      2.4MB

    • MD5

      d1d012998b1398dee03a07c4863551a8

    • SHA1

      065dcbc0b8cf2ccc48f8f874ffff43c737cf414f

    • SHA256

      ef5c02187889780f0d5961b38166c636c8684d373b7c83383224a4bbfd47cb3d

    • SHA512

      6aad7334ee333b506710e1f84d58136345791fefa0dccd148aaf1839985b929e58e28b17f41ab8592bdee9341e95bc4f5ffbced09e40fd824ca6c90090dc7f59

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUCJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68dCtIuoITsdZ

    • 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