Analysis

  • max time kernel
    86s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2023 02:13

General

  • Target

    9ee64b8dc1af383e25ca542f9ede7a8b649c8b1477012c39fca179637fec289d.exe

  • Size

    4.0MB

  • MD5

    c8912fe8e08b4e0947b0c56201485581

  • SHA1

    2699d925e8a1708e86afac0f65d8e4797126fe90

  • SHA256

    9ee64b8dc1af383e25ca542f9ede7a8b649c8b1477012c39fca179637fec289d

  • SHA512

    c6eca8af85ceeec0a0221a067196bb17ed09bb00931371f79d262d53efcff405c38ea93bb9189d791eb3b358c121a9ec4475f754d1ea92045deff2de0426b70f

  • SSDEEP

    98304:wqjAMzqBA3pR8BG0Zu+wExyDfpvo0fc/jc/kA3:w4pzqCCBG05w1DRATct3

Malware Config

Extracted

Family

vidar

Version

3.1

Botnet

20f95c4f85151b21c48a8766fbd2d32d

C2

https://steamcommunity.com/profiles/76561199472266392

https://t.me/tabootalks

http://135.181.26.183:80

Attributes
  • profile_id_v2

    20f95c4f85151b21c48a8766fbd2d32d

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

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.

  • VMProtect packed file 1 IoCs

    Detects executables packed with VMProtect commercial packer.

  • 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9ee64b8dc1af383e25ca542f9ede7a8b649c8b1477012c39fca179637fec289d.exe
    "C:\Users\Admin\AppData\Local\Temp\9ee64b8dc1af383e25ca542f9ede7a8b649c8b1477012c39fca179637fec289d.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4452
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\9ee64b8dc1af383e25ca542f9ede7a8b649c8b1477012c39fca179637fec289d.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2912
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:3620

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/4452-133-0x00000000003B0000-0x00000000009ED000-memory.dmp

    Filesize

    6.2MB

  • memory/4452-147-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB