General

  • Target

    file

  • Size

    175KB

  • Sample

    230124-skrlesdh2v

  • MD5

    098f81263570d918777a623736f2d61a

  • SHA1

    89b9a019c1e6ebd8c79996f9e8a037166a4ca677

  • SHA256

    52d2e4bae2325447679354f2e85e91458ef7c3dfeb2d88c20e461d4b0f7d49bb

  • SHA512

    c39dd4731acba5267195e31c4b374cad879c9ac872248e49b069dd2c33f338d431aad1952dad8eaaee8f42b047436402e6b978d365a2c8244c2a7937ee70924f

  • SSDEEP

    3072:mBN2BgrwfOLjJlYXC5Gb8PyIeT8qEkUGaRW/PfHv:6QCLjJlCX6yhTVdUTG

Malware Config

Extracted

Family

vidar

Version

2.2

Botnet

237

C2

https://t.me/litlebey

https://steamcommunity.com/profiles/76561199472399815

Attributes
  • profile_id

    237

Targets

    • Target

      file

    • Size

      175KB

    • MD5

      098f81263570d918777a623736f2d61a

    • SHA1

      89b9a019c1e6ebd8c79996f9e8a037166a4ca677

    • SHA256

      52d2e4bae2325447679354f2e85e91458ef7c3dfeb2d88c20e461d4b0f7d49bb

    • SHA512

      c39dd4731acba5267195e31c4b374cad879c9ac872248e49b069dd2c33f338d431aad1952dad8eaaee8f42b047436402e6b978d365a2c8244c2a7937ee70924f

    • SSDEEP

      3072:mBN2BgrwfOLjJlYXC5Gb8PyIeT8qEkUGaRW/PfHv:6QCLjJlCX6yhTVdUTG

    • Detects Smokeloader packer

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Executes dropped EXE

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Accesses 2FA software files, possible credential harvesting

    • 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.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

6
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

3
T1005

Tasks