General

  • Target

    file.exe

  • Size

    326KB

  • Sample

    230123-zgek1sfd28

  • MD5

    9f3f00f180941d34bff26f3acb61d3f8

  • SHA1

    ce7e78241bf67fe2c2cabd31bed71120335c4a27

  • SHA256

    a93f2be30a13638a233b873d41f1dbe52c8f1cf97025b1f135e4c79c663b0889

  • SHA512

    b650b40ca58df720211ab2785f53c40b8e08d9219e193745c1c0da90b56353c2ca53452b3937cfbba72c3ff5e46d32a9fc1f98de8e93ccb34c1798c61f107280

  • SSDEEP

    6144:RLjfyy2cTbcqedlAeOR+ngtQK/fu1d07lmTb:R3fV29TpgtQKXu1m

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.exe

    • Size

      326KB

    • MD5

      9f3f00f180941d34bff26f3acb61d3f8

    • SHA1

      ce7e78241bf67fe2c2cabd31bed71120335c4a27

    • SHA256

      a93f2be30a13638a233b873d41f1dbe52c8f1cf97025b1f135e4c79c663b0889

    • SHA512

      b650b40ca58df720211ab2785f53c40b8e08d9219e193745c1c0da90b56353c2ca53452b3937cfbba72c3ff5e46d32a9fc1f98de8e93ccb34c1798c61f107280

    • SSDEEP

      6144:RLjfyy2cTbcqedlAeOR+ngtQK/fu1d07lmTb:R3fV29TpgtQKXu1m

    • 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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • 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

    • Drops desktop.ini file(s)

    • 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

Modify Registry

1
T1112

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

Remote System Discovery

1
T1018

Collection

Data from Local System

3
T1005

Tasks