General

  • Target

    be7ada37e19239f2153a01a283f3a72cf41402ac0b1f35ccd30073e9e29cbaf4

  • Size

    2.0MB

  • Sample

    240524-t2vvvacd92

  • MD5

    2f637451ae32979d98d7f4a39c3f5fde

  • SHA1

    ffce0ef609d981474c1e8adeaa8611b1b464b456

  • SHA256

    be7ada37e19239f2153a01a283f3a72cf41402ac0b1f35ccd30073e9e29cbaf4

  • SHA512

    21990e829afdd89cd144cb59184c865cbf538ead6382006e790bf6c96a01a957289ca9e93ddc53ab51ad792103a643839029d158fbfd013b6fe684686caca3cf

  • SSDEEP

    49152:s4K3x1vUaJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18atIuoITsdZ

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

      be7ada37e19239f2153a01a283f3a72cf41402ac0b1f35ccd30073e9e29cbaf4

    • Size

      2.0MB

    • MD5

      2f637451ae32979d98d7f4a39c3f5fde

    • SHA1

      ffce0ef609d981474c1e8adeaa8611b1b464b456

    • SHA256

      be7ada37e19239f2153a01a283f3a72cf41402ac0b1f35ccd30073e9e29cbaf4

    • SHA512

      21990e829afdd89cd144cb59184c865cbf538ead6382006e790bf6c96a01a957289ca9e93ddc53ab51ad792103a643839029d158fbfd013b6fe684686caca3cf

    • SSDEEP

      49152:s4K3x1vUaJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18atIuoITsdZ

    • 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