General

  • Target

    6e420e09b83913852da3d80723c8a00734356b85b041983a21c505e431a23bb2

  • Size

    2.4MB

  • Sample

    240531-adqfnsfd6x

  • MD5

    4706053a510afb7990f5d993520f61b6

  • SHA1

    2852c0eb6bbfef33da72552495a3ab86f045f71b

  • SHA256

    6e420e09b83913852da3d80723c8a00734356b85b041983a21c505e431a23bb2

  • SHA512

    0b3b8e4fde32ab97e59ae0dd4149e807cce3d996cc57bb5842ba6c44474b0b54cd6f9191f88b2d16a0331768c9620e676e0525d8c2f718222449bb339917e0be

  • SSDEEP

    49152:jxIRJF1HL+VdX68kU2JtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68d2tIuoITsdZ

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

      6e420e09b83913852da3d80723c8a00734356b85b041983a21c505e431a23bb2

    • Size

      2.4MB

    • MD5

      4706053a510afb7990f5d993520f61b6

    • SHA1

      2852c0eb6bbfef33da72552495a3ab86f045f71b

    • SHA256

      6e420e09b83913852da3d80723c8a00734356b85b041983a21c505e431a23bb2

    • SHA512

      0b3b8e4fde32ab97e59ae0dd4149e807cce3d996cc57bb5842ba6c44474b0b54cd6f9191f88b2d16a0331768c9620e676e0525d8c2f718222449bb339917e0be

    • SSDEEP

      49152:jxIRJF1HL+VdX68kU2JtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68d2tIuoITsdZ

    • 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

    • Loads dropped DLL

    • 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