General

  • Target

    7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9

  • Size

    2.0MB

  • Sample

    240524-ynrngshb3z

  • MD5

    c7e9ddcbc38c0671b039a5268ed30d12

  • SHA1

    c7a053d47dfb3cb87c1c6752e9d8668372b1f4ec

  • SHA256

    7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9

  • SHA512

    1928f85b3f0183163a2dd2543c4cf618baa2a84ff8128b951f1a72bd48706c19d3f4cb6a18f64ff563d310b8f24b71018f1f143df7a79cee9da5a98ad6d2067b

  • SSDEEP

    49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ

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

      7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9

    • Size

      2.0MB

    • MD5

      c7e9ddcbc38c0671b039a5268ed30d12

    • SHA1

      c7a053d47dfb3cb87c1c6752e9d8668372b1f4ec

    • SHA256

      7a1562277c378947006fbe068a141aba0d3c6982ea374f9678a5170a704e58d9

    • SHA512

      1928f85b3f0183163a2dd2543c4cf618baa2a84ff8128b951f1a72bd48706c19d3f4cb6a18f64ff563d310b8f24b71018f1f143df7a79cee9da5a98ad6d2067b

    • SSDEEP

      49152:s4K3x1vUyJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18ytIuoITsdZ

    • 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