General

  • Target

    86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24

  • Size

    2.0MB

  • Sample

    240524-y2ldmahf8t

  • MD5

    7a35dffc3bef68e527516fce6c05b9c8

  • SHA1

    79c61bc59fe221c9dd457605a4e8454134e2d7e6

  • SHA256

    86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24

  • SHA512

    fad5e741f5e58ddc96a5b788d55f8ffe2fba6907d4034fec96f891f338eae53b4131623aad4420f41dd3d30ee91752bcf3cb2dc87eb655dd7777079dc26ac5cf

  • SSDEEP

    49152:s4K3x1vUuJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18utIuoITsdZ

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

      86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24

    • Size

      2.0MB

    • MD5

      7a35dffc3bef68e527516fce6c05b9c8

    • SHA1

      79c61bc59fe221c9dd457605a4e8454134e2d7e6

    • SHA256

      86c8aab49064cd62d9c41a6e4cda132115dfdd1b4eb585090f2e287c61bfef24

    • SHA512

      fad5e741f5e58ddc96a5b788d55f8ffe2fba6907d4034fec96f891f338eae53b4131623aad4420f41dd3d30ee91752bcf3cb2dc87eb655dd7777079dc26ac5cf

    • SSDEEP

      49152:s4K3x1vUuJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18utIuoITsdZ

    • 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