General

  • Target

    d586a21f282f1d5ab66ae23599c763f3a551cce4dbbeab5c7dbe9575b558c738

  • Size

    2.0MB

  • Sample

    240526-xhdc8sgb4y

  • MD5

    34787964bb002a6c1749292f69e02a12

  • SHA1

    b18ae36e0c262d13d98e4a2c91d6afc369d886c5

  • SHA256

    d586a21f282f1d5ab66ae23599c763f3a551cce4dbbeab5c7dbe9575b558c738

  • SHA512

    f966cc16fec7c87f8dbad75dd61e6d37ff1c70e5d898a374af9b2d661e9e65e2c182858e6128cb2370c4f6c632257fb3d2645566237c494a74c26cc540ea025a

  • SSDEEP

    49152:OePpQE1JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE1tIuoITsdZ

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

      d586a21f282f1d5ab66ae23599c763f3a551cce4dbbeab5c7dbe9575b558c738

    • Size

      2.0MB

    • MD5

      34787964bb002a6c1749292f69e02a12

    • SHA1

      b18ae36e0c262d13d98e4a2c91d6afc369d886c5

    • SHA256

      d586a21f282f1d5ab66ae23599c763f3a551cce4dbbeab5c7dbe9575b558c738

    • SHA512

      f966cc16fec7c87f8dbad75dd61e6d37ff1c70e5d898a374af9b2d661e9e65e2c182858e6128cb2370c4f6c632257fb3d2645566237c494a74c26cc540ea025a

    • SSDEEP

      49152:OePpQE1JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE1tIuoITsdZ

    • 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