General

  • Target

    85d417ade5e92d4f93eaf210a28b523348112a9eb735c9370d101325e77dea92

  • Size

    2.0MB

  • Sample

    240525-b4qpssab6v

  • MD5

    6a13443f51fe14c4b535e8adb51f25d3

  • SHA1

    602b85b4f3d014babe7d55e46c81a59f9c0ea558

  • SHA256

    85d417ade5e92d4f93eaf210a28b523348112a9eb735c9370d101325e77dea92

  • SHA512

    17b8b5c1b3279d344c262ac26cb5ee2c0c225a1148d546cac95aef24966b6c53db1935ff11e40ca30109d7d0893b075916eb351f0e0c77ab31fb5e41cd62cd0a

  • SSDEEP

    49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

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

      85d417ade5e92d4f93eaf210a28b523348112a9eb735c9370d101325e77dea92

    • Size

      2.0MB

    • MD5

      6a13443f51fe14c4b535e8adb51f25d3

    • SHA1

      602b85b4f3d014babe7d55e46c81a59f9c0ea558

    • SHA256

      85d417ade5e92d4f93eaf210a28b523348112a9eb735c9370d101325e77dea92

    • SHA512

      17b8b5c1b3279d344c262ac26cb5ee2c0c225a1148d546cac95aef24966b6c53db1935ff11e40ca30109d7d0893b075916eb351f0e0c77ab31fb5e41cd62cd0a

    • SSDEEP

      49152:s4K3x1vUmJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18mtIuoITsdZ

    • 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 Enterprise v15

Tasks