General

  • Target

    f0e2494f34148415fb35478b3bb01e730dd83f68aba859ca93a7c203b5aa61e3

  • Size

    2.0MB

  • Sample

    240526-mrcg7afd41

  • MD5

    5ecf57a000b62030475d2b3276e4e82e

  • SHA1

    9ca0ef3a735ce330eda1f1b441bd099bf6185f1f

  • SHA256

    f0e2494f34148415fb35478b3bb01e730dd83f68aba859ca93a7c203b5aa61e3

  • SHA512

    19753243439d8a67a51465d4e5b4b2de3353b4123289ec1ea50545def864cd9da14a7feae3b2958e6237df8d12bfecc5498334e2a255203607b24baa528eaa02

  • SSDEEP

    49152:OePpQE5JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE5tIuoITsdZ

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

      f0e2494f34148415fb35478b3bb01e730dd83f68aba859ca93a7c203b5aa61e3

    • Size

      2.0MB

    • MD5

      5ecf57a000b62030475d2b3276e4e82e

    • SHA1

      9ca0ef3a735ce330eda1f1b441bd099bf6185f1f

    • SHA256

      f0e2494f34148415fb35478b3bb01e730dd83f68aba859ca93a7c203b5aa61e3

    • SHA512

      19753243439d8a67a51465d4e5b4b2de3353b4123289ec1ea50545def864cd9da14a7feae3b2958e6237df8d12bfecc5498334e2a255203607b24baa528eaa02

    • SSDEEP

      49152:OePpQE5JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE5tIuoITsdZ

    • 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