General

  • Target

    e863d368e980b511583d6c048ec82503cf6a9b017f20892ce3d277d643ea590f

  • Size

    2.0MB

  • Sample

    240527-es4ztsff9z

  • MD5

    f701159ef8091fce0703bfa88369e774

  • SHA1

    495c63f3fe9b60ce59869da8ae4f520e1e590ad2

  • SHA256

    e863d368e980b511583d6c048ec82503cf6a9b017f20892ce3d277d643ea590f

  • SHA512

    603a86a3a3f1b9426b628210a432bdccae986d5fd83768f554d850d6953252fa34dcd8d13edfa6b13ed3769647357f21c24731741738d6fb0172442f6962f16f

  • SSDEEP

    49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ

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

      e863d368e980b511583d6c048ec82503cf6a9b017f20892ce3d277d643ea590f

    • Size

      2.0MB

    • MD5

      f701159ef8091fce0703bfa88369e774

    • SHA1

      495c63f3fe9b60ce59869da8ae4f520e1e590ad2

    • SHA256

      e863d368e980b511583d6c048ec82503cf6a9b017f20892ce3d277d643ea590f

    • SHA512

      603a86a3a3f1b9426b628210a432bdccae986d5fd83768f554d850d6953252fa34dcd8d13edfa6b13ed3769647357f21c24731741738d6fb0172442f6962f16f

    • SSDEEP

      49152:OePpQExJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQExtIuoITsdZ

    • 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