General

  • Target

    763f162f7698c795f95fa7467681e84fc64ab44a074a34b6b087615178c9d737

  • Size

    2.0MB

  • Sample

    240525-g6y2vahc66

  • MD5

    489c46812644a455dbb49a40f60e8c4e

  • SHA1

    3be7eb500d2abf007c434a8fcb036c5f71d07288

  • SHA256

    763f162f7698c795f95fa7467681e84fc64ab44a074a34b6b087615178c9d737

  • SHA512

    5dbc82222e880718ba7413023320688e8009bca0b46f1f53f6392ac4ec2b2d6462fbe5ce5ffb78bdd13833c858d6fbd46d19542865985599c50f73cdaf085abb

  • SSDEEP

    49152:s4K3x1vUaJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18atIuoITsdZ

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

      763f162f7698c795f95fa7467681e84fc64ab44a074a34b6b087615178c9d737

    • Size

      2.0MB

    • MD5

      489c46812644a455dbb49a40f60e8c4e

    • SHA1

      3be7eb500d2abf007c434a8fcb036c5f71d07288

    • SHA256

      763f162f7698c795f95fa7467681e84fc64ab44a074a34b6b087615178c9d737

    • SHA512

      5dbc82222e880718ba7413023320688e8009bca0b46f1f53f6392ac4ec2b2d6462fbe5ce5ffb78bdd13833c858d6fbd46d19542865985599c50f73cdaf085abb

    • SSDEEP

      49152:s4K3x1vUaJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18atIuoITsdZ

    • 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