General

  • Target

    file.exe

  • Size

    336KB

  • Sample

    230124-a73cbsgb69

  • MD5

    f27b54a734087eac11f42be987965813

  • SHA1

    6ee816527a79a1e82561810bf3b5c1e965e8180b

  • SHA256

    e18d023806b2dae4cfae65f12e8a663caaa310eac3a9fb4d0efdcd0316fee55b

  • SHA512

    e8d0a573cb7847a67cdab1725fcadc2bbf01a96370cab8ff48daa36ece4518e856716c4cbfff88d98da3663054bdf765f4e225ce53420260d462913ad24b7530

  • SSDEEP

    6144:VkL/hR249u56rP+4EuM0c5HtQK/fu1d0cmTb:6FR2Qk6rPWuM0MtQKXu1f

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

      336KB

    • MD5

      f27b54a734087eac11f42be987965813

    • SHA1

      6ee816527a79a1e82561810bf3b5c1e965e8180b

    • SHA256

      e18d023806b2dae4cfae65f12e8a663caaa310eac3a9fb4d0efdcd0316fee55b

    • SHA512

      e8d0a573cb7847a67cdab1725fcadc2bbf01a96370cab8ff48daa36ece4518e856716c4cbfff88d98da3663054bdf765f4e225ce53420260d462913ad24b7530

    • SSDEEP

      6144:VkL/hR249u56rP+4EuM0c5HtQK/fu1d0cmTb:6FR2Qk6rPWuM0MtQKXu1f

    • 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