Analysis

  • max time kernel
    141s
  • max time network
    142s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    19-04-2023 23:40

General

  • Target

    5b4a9e04b965aabae6f402c64bc965264eba5f460172b51f0c19f9146765883a.exe

  • Size

    345KB

  • MD5

    859c74c9e8c54dbcbd42a73c1548a363

  • SHA1

    0604f728197d8563221d126743828894f4ad0dea

  • SHA256

    5b4a9e04b965aabae6f402c64bc965264eba5f460172b51f0c19f9146765883a

  • SHA512

    5e3c88fc99d8c87e3254264ba97ce8ffcd132849c5ff0629ffaafbc398a80c75697877e8fa40dbcd723067cf88abe8d501f7c543b5fc1bee499d147dfe2e5a3a

  • SSDEEP

    6144:DDq+6bntsareKiOukMkeYQoQ0j+g4/ve:3UbntsKhiOujB

Malware Config

Extracted

Family

vidar

Version

3.4

Botnet

e749025c61b2caca10aa829a9e1a65a1

C2

https://steamcommunity.com/profiles/76561199494593681

https://t.me/auftriebs

Attributes
  • profile_id_v2

    e749025c61b2caca10aa829a9e1a65a1

  • user_agent

    Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:105.0) Gecko/20100101 Firefox/105.0

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • 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
  • Checks installed software on the system 1 TTPs

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

  • Program crash 1 IoCs
  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\5b4a9e04b965aabae6f402c64bc965264eba5f460172b51f0c19f9146765883a.exe
    "C:\Users\Admin\AppData\Local\Temp\5b4a9e04b965aabae6f402c64bc965264eba5f460172b51f0c19f9146765883a.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:2476
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2476 -s 1808
      2⤵
      • Program crash
      PID:1488

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/2476-122-0x0000000002D20000-0x0000000002D77000-memory.dmp

    Filesize

    348KB

  • memory/2476-135-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2476-175-0x0000000000400000-0x0000000002BAF000-memory.dmp

    Filesize

    39.7MB

  • memory/2476-181-0x0000000000400000-0x0000000002BAF000-memory.dmp

    Filesize

    39.7MB