General

  • Target

    18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1

  • Size

    2.0MB

  • Sample

    240524-tf4wmabf79

  • MD5

    adea8099a77307b3aedb99b65c4fd513

  • SHA1

    ae26e0ca9be4fdf23ef5edae55ab0b025b84b6dd

  • SHA256

    18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1

  • SHA512

    e910245d12bc5a4243de5b60220b96b79a4d5a600aa92cc0097fc9d19cee0ac9615ea3b422fd24307e19dcfe2bfd76afb47df4e7fe2f335dd88794e1d6d21589

  • SSDEEP

    49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ

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

      18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1

    • Size

      2.0MB

    • MD5

      adea8099a77307b3aedb99b65c4fd513

    • SHA1

      ae26e0ca9be4fdf23ef5edae55ab0b025b84b6dd

    • SHA256

      18154804c0c57ead91c3da1d4dc8aa378b538d96f69d2abce0465861b5d297f1

    • SHA512

      e910245d12bc5a4243de5b60220b96b79a4d5a600aa92cc0097fc9d19cee0ac9615ea3b422fd24307e19dcfe2bfd76afb47df4e7fe2f335dd88794e1d6d21589

    • SSDEEP

      49152:s4K3x1vUKJtTF+TxMoxc1TU+j+dAzGwlrh:s4Ex18KtIuoITsdZ

    • 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