General

  • Target

    d89896bd803c9124b8072a1cce087f285a602a5ccd3fb336875f61c24f8d1efc

  • Size

    2.0MB

  • Sample

    240526-ytj6laac4z

  • MD5

    8db3b6439ee3d0b8152d67d24db349c4

  • SHA1

    a6791899346dc49c9913f1c1f42032690790337c

  • SHA256

    d89896bd803c9124b8072a1cce087f285a602a5ccd3fb336875f61c24f8d1efc

  • SHA512

    e2d7ae36661690e2f4555c459f6fe970522504f4789ffa2ae1685948798357ffb2bd7e7bcbdb4beb7a1c0b09a9091951accb47723d114bc11dc0e4884d1a8ee7

  • SSDEEP

    49152:OePpQEpJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEptIuoITsdZ

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

      d89896bd803c9124b8072a1cce087f285a602a5ccd3fb336875f61c24f8d1efc

    • Size

      2.0MB

    • MD5

      8db3b6439ee3d0b8152d67d24db349c4

    • SHA1

      a6791899346dc49c9913f1c1f42032690790337c

    • SHA256

      d89896bd803c9124b8072a1cce087f285a602a5ccd3fb336875f61c24f8d1efc

    • SHA512

      e2d7ae36661690e2f4555c459f6fe970522504f4789ffa2ae1685948798357ffb2bd7e7bcbdb4beb7a1c0b09a9091951accb47723d114bc11dc0e4884d1a8ee7

    • SSDEEP

      49152:OePpQEpJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEptIuoITsdZ

    • 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 Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks