General

  • Target

    a7eee8d969615b336c60f3d7bfac158bac2c88c66f8f5c9029222509a625c065

  • Size

    2.0MB

  • Sample

    240526-fraj9sgg38

  • MD5

    c0703e82544378b243aca5468e127f9d

  • SHA1

    138aeee56cde3892f3ebc28de3d686a9f5279714

  • SHA256

    a7eee8d969615b336c60f3d7bfac158bac2c88c66f8f5c9029222509a625c065

  • SHA512

    a046ed5cf972e458ad5f6b73f8a5fe9b91a05c0e6fb85b42a94102ecea815f71dcd9ed16a47d61a806fbc8201c193d5caa858afc0ed20fdf7616493a2d5857fb

  • 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

      a7eee8d969615b336c60f3d7bfac158bac2c88c66f8f5c9029222509a625c065

    • Size

      2.0MB

    • MD5

      c0703e82544378b243aca5468e127f9d

    • SHA1

      138aeee56cde3892f3ebc28de3d686a9f5279714

    • SHA256

      a7eee8d969615b336c60f3d7bfac158bac2c88c66f8f5c9029222509a625c065

    • SHA512

      a046ed5cf972e458ad5f6b73f8a5fe9b91a05c0e6fb85b42a94102ecea815f71dcd9ed16a47d61a806fbc8201c193d5caa858afc0ed20fdf7616493a2d5857fb

    • 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 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