General

  • Target

    6facc5a53b89df09c6bbf49a407ac86c82a620213213e6f9fa914cbb37fb4750

  • Size

    2.0MB

  • Sample

    240524-s78hfsba5w

  • MD5

    1a9885e8eb7c36baba8c0e99ab61c3f4

  • SHA1

    791363ed4f1fea342b3495c18f5854f67d0fb06d

  • SHA256

    6facc5a53b89df09c6bbf49a407ac86c82a620213213e6f9fa914cbb37fb4750

  • SHA512

    11982a8f593ba55352f343385c7864d052070834d7110538d66f837810984fd6f7bb9575a6b4d2ec2f28ee02044ee246560d780fb3b84aefe72bd18915258e04

  • SSDEEP

    49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ

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

      6facc5a53b89df09c6bbf49a407ac86c82a620213213e6f9fa914cbb37fb4750

    • Size

      2.0MB

    • MD5

      1a9885e8eb7c36baba8c0e99ab61c3f4

    • SHA1

      791363ed4f1fea342b3495c18f5854f67d0fb06d

    • SHA256

      6facc5a53b89df09c6bbf49a407ac86c82a620213213e6f9fa914cbb37fb4750

    • SHA512

      11982a8f593ba55352f343385c7864d052070834d7110538d66f837810984fd6f7bb9575a6b4d2ec2f28ee02044ee246560d780fb3b84aefe72bd18915258e04

    • SSDEEP

      49152:s4K3x1vUeJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18etIuoITsdZ

    • 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