General

  • Target

    file.exe

  • Size

    1.1MB

  • Sample

    240527-ldlm9sfa5x

  • MD5

    7e6dee5e49cce77c1ed5d9590f91ba56

  • SHA1

    923137ff5f8ebfed39f43e1711c6cf5508ce5b16

  • SHA256

    1328f330d88fc6c57268ac0495f665a09db19147ae3819107dfabc079f4bf7b6

  • SHA512

    f20159f092faa00564b2274c2e733cf0fb01b0a785395fb71c8770b6c56ee2027b42cb52b9e4c8037fc9fd33d2984ef36d8b9b03a73072425d262dbe7c4e3083

  • SSDEEP

    24576:13AHDAjFNUIRMOkZD+LIGnB8i04cQinbyTn4P0eSYvhZ:13AzIRPkZD+LHp0/QXr/el

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

      file.exe

    • Size

      1.1MB

    • MD5

      7e6dee5e49cce77c1ed5d9590f91ba56

    • SHA1

      923137ff5f8ebfed39f43e1711c6cf5508ce5b16

    • SHA256

      1328f330d88fc6c57268ac0495f665a09db19147ae3819107dfabc079f4bf7b6

    • SHA512

      f20159f092faa00564b2274c2e733cf0fb01b0a785395fb71c8770b6c56ee2027b42cb52b9e4c8037fc9fd33d2984ef36d8b9b03a73072425d262dbe7c4e3083

    • SSDEEP

      24576:13AHDAjFNUIRMOkZD+LIGnB8i04cQinbyTn4P0eSYvhZ:13AzIRPkZD+LHp0/QXr/el

    • 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.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • 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

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks