General

  • Target

    682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474

  • Size

    2.0MB

  • Sample

    240525-gm512sge98

  • MD5

    608be16c194764b079e66159b1f93d90

  • SHA1

    0057ddf9fb661d9211f36f15e861a55515b68612

  • SHA256

    682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474

  • SHA512

    30daf0faa5079e769e95b09040e411272b9589325cc51ed07e9218d1ea302dfdba35bb574a35e02d42b5f5f191789783bfaaf2758502c6764d6467c39f805a9f

  • SSDEEP

    49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ

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

      682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474

    • Size

      2.0MB

    • MD5

      608be16c194764b079e66159b1f93d90

    • SHA1

      0057ddf9fb661d9211f36f15e861a55515b68612

    • SHA256

      682c395c166309198308ad51aca1171859207d82b7389837a9593b939f4d9474

    • SHA512

      30daf0faa5079e769e95b09040e411272b9589325cc51ed07e9218d1ea302dfdba35bb574a35e02d42b5f5f191789783bfaaf2758502c6764d6467c39f805a9f

    • SSDEEP

      49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ

    • 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