Analysis

  • max time kernel
    170s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 14:09

General

  • Target

    3bfd7f14ce28a3e5e9b883068694546383fde33d983875ca5b95319d2e367841.exe

  • Size

    774KB

  • MD5

    11fdebef0cdf98e5e2f1bbc8da0e5ad9

  • SHA1

    1158b01bc5ca601ba4390a2d88ee9520f98288ec

  • SHA256

    3bfd7f14ce28a3e5e9b883068694546383fde33d983875ca5b95319d2e367841

  • SHA512

    eab9b2df332c01388ffa80985eda4e8ebb74f63e24d96c8583c56cf47f1fa76f9c690e35eba762aa9a2fc63d697c54481ada4902d6e39eca82d81b127dc8effc

Score
10/10

Malware Config

Extracted

Family

vidar

Version

48.6

Botnet

937

C2

https://mastodon.online/@valhalla

https://koyu.space/@valhalla

Attributes
  • profile_id

    937

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 49 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3bfd7f14ce28a3e5e9b883068694546383fde33d983875ca5b95319d2e367841.exe
    "C:\Users\Admin\AppData\Local\Temp\3bfd7f14ce28a3e5e9b883068694546383fde33d983875ca5b95319d2e367841.exe"
    1⤵
      PID:676
    • C:\Windows\system32\MusNotifyIcon.exe
      %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
      1⤵
      • Checks processor information in registry
      PID:3164
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k NetworkService -p
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:3588
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3504

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/676-130-0x0000000002E5D000-0x0000000002EDA000-memory.dmp
      Filesize

      500KB

    • memory/676-131-0x0000000002E5D000-0x0000000002EDA000-memory.dmp
      Filesize

      500KB

    • memory/676-132-0x0000000004900000-0x00000000049D5000-memory.dmp
      Filesize

      852KB

    • memory/676-133-0x0000000000400000-0x00000000004D8000-memory.dmp
      Filesize

      864KB