General

  • Target

    2ae7aaf22ffc8e612baaaf4e78ba8d6d7c99dccc93403da9cf32a0a62b83bb2a

  • Size

    2.0MB

  • Sample

    240525-f33p7afg32

  • MD5

    3f553a472a3c8174add289ba76de4d1c

  • SHA1

    297809d81c6abaf1a2210e2a8c872479af602a10

  • SHA256

    2ae7aaf22ffc8e612baaaf4e78ba8d6d7c99dccc93403da9cf32a0a62b83bb2a

  • SHA512

    e3c05ae3c05bc5905482f1ed782948d6a4dcec7975e466c42e9ed952508b73984327beeafecc82905709f9b616162a9be99aa93ff4f54eded7d03209a0ba9adf

  • SSDEEP

    49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ

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

      2ae7aaf22ffc8e612baaaf4e78ba8d6d7c99dccc93403da9cf32a0a62b83bb2a

    • Size

      2.0MB

    • MD5

      3f553a472a3c8174add289ba76de4d1c

    • SHA1

      297809d81c6abaf1a2210e2a8c872479af602a10

    • SHA256

      2ae7aaf22ffc8e612baaaf4e78ba8d6d7c99dccc93403da9cf32a0a62b83bb2a

    • SHA512

      e3c05ae3c05bc5905482f1ed782948d6a4dcec7975e466c42e9ed952508b73984327beeafecc82905709f9b616162a9be99aa93ff4f54eded7d03209a0ba9adf

    • SSDEEP

      49152:s4K3x1vUCJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18CtIuoITsdZ

    • 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