General

  • Target

    S0FTWARE.rar

  • Size

    17.1MB

  • Sample

    250128-qkxfkazlby

  • MD5

    0e0d761197a92c39b7d16d50c2822180

  • SHA1

    5b448444fe710f69905026d043db857059c3182a

  • SHA256

    1057139b6ef49ec6d5f2a73b4b223e21da00997c116156aa1d65cdadb96b3592

  • SHA512

    ce1b266cbd4ecee74ae30d6ba472f413a4b5be01d53b1dd41f3b396e64e945044ebf6eed24631c8654111884f06474b2f0ce51b055182b2a0e32861115e1a2aa

  • SSDEEP

    393216:xJjh99eGR1Ccprlb55gOaNa2zdzYisUQD9Gbtd/DdAKG:xJjT4GR/5lb55gba29sUQp6FdAKG

Malware Config

Extracted

Family

vidar

C2

https://t.me/m08mbk

https://steamcommunity.com/profiles/76561199820567237

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0

Targets

    • Target

      S0FTWARE.exe

    • Size

      17KB

    • MD5

      d3ddf810af8bba4a931f8eaacd9a027b

    • SHA1

      005036f0441ce6b58c8a5aa9d570de55fb48bb42

    • SHA256

      f1ebc79bd06204885ea85fd1a3e64fdf9b4f869b3c4cbfb241622d03b41fa663

    • SHA512

      e81ed3d2c2a9e6784f8a1c9172544a37845b22f94b4e9d4b5fa6e92e0319b1d93413cc3fc9281e55edd18242ff4a81ac43b5e7bf4341d77525c93c8636175390

    • SSDEEP

      384:dBsoiwi/erATTM8r53VzbA7WtylpDoTPao9TimCt2:dcewrltb2pOao9TNCU

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Xmrig family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks