General

  • Target

    f2524afdb9b436bae069fd6bf8922db4d979742e8f9cd6aec918fb5eb24d4edf

  • Size

    2.0MB

  • Sample

    240526-kqv7ssdf36

  • MD5

    aa62593a6f4d6a053922894e654983e3

  • SHA1

    e1e6ec3511a2b61dfbdf3bccd7a531a2834cc05e

  • SHA256

    f2524afdb9b436bae069fd6bf8922db4d979742e8f9cd6aec918fb5eb24d4edf

  • SHA512

    bb16192b859d99dbd259dc4cf7313a25abc0a405f45be8a3aa395c59df1da51af4cf3c986a28aac383d261e3b38fb69551c46dbbe3f0f31fd33385793feeb81f

  • SSDEEP

    49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ

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

      f2524afdb9b436bae069fd6bf8922db4d979742e8f9cd6aec918fb5eb24d4edf

    • Size

      2.0MB

    • MD5

      aa62593a6f4d6a053922894e654983e3

    • SHA1

      e1e6ec3511a2b61dfbdf3bccd7a531a2834cc05e

    • SHA256

      f2524afdb9b436bae069fd6bf8922db4d979742e8f9cd6aec918fb5eb24d4edf

    • SHA512

      bb16192b859d99dbd259dc4cf7313a25abc0a405f45be8a3aa395c59df1da51af4cf3c986a28aac383d261e3b38fb69551c46dbbe3f0f31fd33385793feeb81f

    • SSDEEP

      49152:s4K3x1vUiJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18itIuoITsdZ

    • 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