General

  • Target

    13b733a19ef17115272c713b65922ea9dd46ac6e836f1aa79eedb9588350441d

  • Size

    2.0MB

  • Sample

    240524-vbhchacd51

  • MD5

    7b6edf7e0426618c26e406c4ec24c650

  • SHA1

    b1dd839f50eb4482a6f6763cd1db4d2df0a41e7f

  • SHA256

    13b733a19ef17115272c713b65922ea9dd46ac6e836f1aa79eedb9588350441d

  • SHA512

    7c6462fef826be5f75e7aab13908e91b43dd80589b9bbd88c0ed5ff517b7ee24e6604447f856bb45b1b95d566d5d40c2db963a206ff38f6a4713d9398dad31d2

  • SSDEEP

    49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ

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

      13b733a19ef17115272c713b65922ea9dd46ac6e836f1aa79eedb9588350441d

    • Size

      2.0MB

    • MD5

      7b6edf7e0426618c26e406c4ec24c650

    • SHA1

      b1dd839f50eb4482a6f6763cd1db4d2df0a41e7f

    • SHA256

      13b733a19ef17115272c713b65922ea9dd46ac6e836f1aa79eedb9588350441d

    • SHA512

      7c6462fef826be5f75e7aab13908e91b43dd80589b9bbd88c0ed5ff517b7ee24e6604447f856bb45b1b95d566d5d40c2db963a206ff38f6a4713d9398dad31d2

    • SSDEEP

      49152:s4K3x1vU6JtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex186tIuoITsdZ

    • 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