General

  • Target

    72be8e77b7e981d6266c1f67a98a941f82e0526da609d0ad747b291f9babf1a9

  • Size

    1.6MB

  • Sample

    240612-d61nwszdrj

  • MD5

    dc7c8d441945da5334a3e311b5df92cc

  • SHA1

    85551b93bf6a0836c0ec96f51e0857166053cc82

  • SHA256

    72be8e77b7e981d6266c1f67a98a941f82e0526da609d0ad747b291f9babf1a9

  • SHA512

    2f611025e58a4f9f761368148537791223af89d316d9b40b1965466f535bb29b2dd821d0f142ee334ba15ed7c21f6f6fd6314f299cb7b59966b249773e7c282f

  • SSDEEP

    24576:spM5863IGfTAVpalBPUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BPUkxVVChjHZQs

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      72be8e77b7e981d6266c1f67a98a941f82e0526da609d0ad747b291f9babf1a9

    • Size

      1.6MB

    • MD5

      dc7c8d441945da5334a3e311b5df92cc

    • SHA1

      85551b93bf6a0836c0ec96f51e0857166053cc82

    • SHA256

      72be8e77b7e981d6266c1f67a98a941f82e0526da609d0ad747b291f9babf1a9

    • SHA512

      2f611025e58a4f9f761368148537791223af89d316d9b40b1965466f535bb29b2dd821d0f142ee334ba15ed7c21f6f6fd6314f299cb7b59966b249773e7c282f

    • SSDEEP

      24576:spM5863IGfTAVpalBPUfMxVVtes12FxwojKr98YGeGG9i:spQLYkTYp6BPUkxVVChjHZQs

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks