Analysis

  • max time kernel
    141s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2024 09:48

General

  • Target

    7f87047009760268eb82843c4a51cb68.exe

  • Size

    561KB

  • MD5

    7f87047009760268eb82843c4a51cb68

  • SHA1

    c52581355a455b9cbb63439b6691f72a394ffad2

  • SHA256

    8bb299a9b045b332407022fe884fa7f1820995f2b34d008552942cf69d32e115

  • SHA512

    93b25648613afe08a0e19a58737be524756809e66828b2cb1d7a5887667e35cae6d0ae654c29e64ec26affe29fd3790e89d670e8f977fb8c73ad36c999cff61b

  • SSDEEP

    12288:VVKx/DZXul/hqGYfwhkV3OVJ55r4GaMwoO:+xLklpqEkV3OVRcW

Score
10/10

Malware Config

Extracted

Family

vidar

Version

39.9

Botnet

408

C2

https://prophefliloc.tumblr.com/

Attributes
  • profile_id

    408

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 4 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7f87047009760268eb82843c4a51cb68.exe
    "C:\Users\Admin\AppData\Local\Temp\7f87047009760268eb82843c4a51cb68.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:3028
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 896
      2⤵
      • Program crash
      PID:1360

Network

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar2310.tmp
    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/3028-2-0x0000000002CD0000-0x0000000002D6D000-memory.dmp
    Filesize

    628KB

  • memory/3028-1-0x0000000000270000-0x0000000000370000-memory.dmp
    Filesize

    1024KB

  • memory/3028-3-0x0000000000400000-0x0000000002CC4000-memory.dmp
    Filesize

    40.8MB

  • memory/3028-43-0x0000000000400000-0x0000000002CC4000-memory.dmp
    Filesize

    40.8MB

  • memory/3028-64-0x0000000000270000-0x0000000000370000-memory.dmp
    Filesize

    1024KB

  • memory/3028-65-0x0000000002CD0000-0x0000000002D6D000-memory.dmp
    Filesize

    628KB