General

  • Target

    0531cde6ba89309d775fcde01b8e2ccfef581a55215679f87e900aa1b2cbd8de

  • Size

    2.0MB

  • Sample

    240526-jlylpacd97

  • MD5

    637a555d11f8f962baca74e1f4f7a06f

  • SHA1

    f0888ac8cfce124947628ae48c0e7bcea18d421e

  • SHA256

    0531cde6ba89309d775fcde01b8e2ccfef581a55215679f87e900aa1b2cbd8de

  • SHA512

    bdb6ad6752ef8cef52c8422d1863189c76906df5a58386799dad08d348006a6fe8119e85c20c4fb5a450283763d7f5e1de85c9de9a5f5b8e80192a4acec22337

  • SSDEEP

    49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ

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

      0531cde6ba89309d775fcde01b8e2ccfef581a55215679f87e900aa1b2cbd8de

    • Size

      2.0MB

    • MD5

      637a555d11f8f962baca74e1f4f7a06f

    • SHA1

      f0888ac8cfce124947628ae48c0e7bcea18d421e

    • SHA256

      0531cde6ba89309d775fcde01b8e2ccfef581a55215679f87e900aa1b2cbd8de

    • SHA512

      bdb6ad6752ef8cef52c8422d1863189c76906df5a58386799dad08d348006a6fe8119e85c20c4fb5a450283763d7f5e1de85c9de9a5f5b8e80192a4acec22337

    • SSDEEP

      49152:s4K3x1vUGJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18GtIuoITsdZ

    • 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