General

  • Target

    f96b1cf28c6bc09df284e60ba38db75ed6fcfc4fb7fee149fa0c41c4ace3b4b0

  • Size

    2.0MB

  • Sample

    240525-gfbhvsgc3v

  • MD5

    bb739440a3ae0743c2dfeff1d33fc078

  • SHA1

    2659a0216085ac58942508c0188049538aa8821e

  • SHA256

    f96b1cf28c6bc09df284e60ba38db75ed6fcfc4fb7fee149fa0c41c4ace3b4b0

  • SHA512

    5abc770110f79ea0c0f575de81129611594f6c99baabd541d5ff84d2bbf8f2be534ce7cd134159198766651e8282e11b6f81fa0893a1f20362361c1fe67446ee

  • SSDEEP

    49152:s4K3x1vUSJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18StIuoITsdZ

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

      f96b1cf28c6bc09df284e60ba38db75ed6fcfc4fb7fee149fa0c41c4ace3b4b0

    • Size

      2.0MB

    • MD5

      bb739440a3ae0743c2dfeff1d33fc078

    • SHA1

      2659a0216085ac58942508c0188049538aa8821e

    • SHA256

      f96b1cf28c6bc09df284e60ba38db75ed6fcfc4fb7fee149fa0c41c4ace3b4b0

    • SHA512

      5abc770110f79ea0c0f575de81129611594f6c99baabd541d5ff84d2bbf8f2be534ce7cd134159198766651e8282e11b6f81fa0893a1f20362361c1fe67446ee

    • SSDEEP

      49152:s4K3x1vUSJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18StIuoITsdZ

    • 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