Analysis

  • max time kernel
    98s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2022 12:50

General

  • Target

    d7bd6d21368392ddb23a0c2adca866c6.exe

  • Size

    4.4MB

  • MD5

    d7bd6d21368392ddb23a0c2adca866c6

  • SHA1

    1319d338785564d7586c7bf3a20bb4c86703b60c

  • SHA256

    74479202be7dde5fc60a3d3eb1c59625d57ff50ec00bfe0a39b8839829ae1c04

  • SHA512

    37ade21ea14dced6c51fe6bf21c588b87a584378d789ca44d5efca4f6e52d7d65f968135c78e4b80d96054c502e789e83624298d1281379f4aec82b57e9ad2ec

  • SSDEEP

    6144:JcYkhLaAOEDPGfHk//WZBj/LkZ+afxntlD/ogPtjQkjh6KQyCWCBs4wOFtNCjW:Jc2eifHk/eZJkZVfxt53hQkjiWCzKS

Malware Config

Extracted

Family

vidar

Version

54.9

Botnet

1636

C2

https://t.me/larsenup

https://ioc.exchange/@zebra54

Attributes
  • profile_id

    1636

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d7bd6d21368392ddb23a0c2adca866c6.exe
    "C:\Users\Admin\AppData\Local\Temp\d7bd6d21368392ddb23a0c2adca866c6.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    PID:4496

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/4496-132-0x00000000007D0000-0x000000000082E000-memory.dmp

    Filesize

    376KB

  • memory/4496-137-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB