General

  • Target

    3a870f615227a262d86d40ccb289283356d6308d08fa2ce56f8dec95443857aa

  • Size

    2.0MB

  • Sample

    240525-wd1sascd3w

  • MD5

    122f424944ab34b30cdca9147f0f9604

  • SHA1

    4cc7982345fe01fe1a7e0c2c123bcdb98f6e12a1

  • SHA256

    3a870f615227a262d86d40ccb289283356d6308d08fa2ce56f8dec95443857aa

  • SHA512

    56c610fab5fc6a60e721a71b189a46e5cb8f8100801fbdfc5de0581f9ab71359f991307acf64ab94095201fbb33086bc58b6711b07bd67883b2924219eb7ce4f

  • 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

      3a870f615227a262d86d40ccb289283356d6308d08fa2ce56f8dec95443857aa

    • Size

      2.0MB

    • MD5

      122f424944ab34b30cdca9147f0f9604

    • SHA1

      4cc7982345fe01fe1a7e0c2c123bcdb98f6e12a1

    • SHA256

      3a870f615227a262d86d40ccb289283356d6308d08fa2ce56f8dec95443857aa

    • SHA512

      56c610fab5fc6a60e721a71b189a46e5cb8f8100801fbdfc5de0581f9ab71359f991307acf64ab94095201fbb33086bc58b6711b07bd67883b2924219eb7ce4f

    • 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