General

  • Target

    c0b6f21cd62183ddaa6eb041b1e17173dae079139e67352c17e7d43cd0c1584d

  • Size

    2.0MB

  • Sample

    240525-cfm5faba32

  • MD5

    8d2a99d2b71c83a025f7b920b5bc9607

  • SHA1

    2162469a837115960afbe53bb33ed0556d268dcc

  • SHA256

    c0b6f21cd62183ddaa6eb041b1e17173dae079139e67352c17e7d43cd0c1584d

  • SHA512

    8da967a7f963382c8963befbdbd501c5cb7c661db5d77916d483c76a54628462145cf02e30032aaca602a299657e01b20e223b40736978b522e2f1c21454319b

  • 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

      c0b6f21cd62183ddaa6eb041b1e17173dae079139e67352c17e7d43cd0c1584d

    • Size

      2.0MB

    • MD5

      8d2a99d2b71c83a025f7b920b5bc9607

    • SHA1

      2162469a837115960afbe53bb33ed0556d268dcc

    • SHA256

      c0b6f21cd62183ddaa6eb041b1e17173dae079139e67352c17e7d43cd0c1584d

    • SHA512

      8da967a7f963382c8963befbdbd501c5cb7c661db5d77916d483c76a54628462145cf02e30032aaca602a299657e01b20e223b40736978b522e2f1c21454319b

    • 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