General

  • Target

    119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1

  • Size

    2.0MB

  • Sample

    240527-fckfxshf23

  • MD5

    fcd7a545ede25912cd98adf414edb281

  • SHA1

    471ada2f626fe244f023de1ab60154936f5a95f6

  • SHA256

    119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1

  • SHA512

    dd4fa2c73340c633687f7db593f6bfb07aae39ab52b36d0effc5d688bbc74399f8d3859a5007de8421a88a9f2ec9ca7a6a5cf7cf371231e04755990709658a3c

  • SSDEEP

    49152:OePpQE9JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE9tIuoITsdZ

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

      119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1

    • Size

      2.0MB

    • MD5

      fcd7a545ede25912cd98adf414edb281

    • SHA1

      471ada2f626fe244f023de1ab60154936f5a95f6

    • SHA256

      119ba9187d386ee6e25f6e4109144ca215d619a5fb03845935f3ed537aa0c4e1

    • SHA512

      dd4fa2c73340c633687f7db593f6bfb07aae39ab52b36d0effc5d688bbc74399f8d3859a5007de8421a88a9f2ec9ca7a6a5cf7cf371231e04755990709658a3c

    • SSDEEP

      49152:OePpQE9JtTF+TxMoxc1TU+j+dAzGwlrh:OePpQE9tIuoITsdZ

    • 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