Analysis

  • max time kernel
    141s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2023 17:39

General

  • Target

    31939762c609b83f220ce10e607be2fb.exe

  • Size

    665KB

  • MD5

    31939762c609b83f220ce10e607be2fb

  • SHA1

    98d7ddf9f1e47b3f9b06707e03f983de83f8ce01

  • SHA256

    a1678f4642a893618119afd5f4bd0ae0751177ed523c121c5e2df3e7a2f789e8

  • SHA512

    4ae9927db22cf783695b636cb00b7d033e0a47141f79cc4eb9bf29a0cafde65f4c4d16b6d5ac39dabf9ec8c4b522ea21b9e0fbf5c99ea558d75849ebfa63ff2b

  • SSDEEP

    12288:sof4H4DbVHPBM0N4bHd5WaPhk8TpwgHeqKJbrhtNv4LgDaU0aQkYZA:CAbVHH8kvww4wrjNegDBQtZA

Score
10/10

Malware Config

Extracted

Family

vidar

Version

39.7

Botnet

706

C2

https://shpak125.tumblr.com/

Attributes
  • profile_id

    706

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 3 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\31939762c609b83f220ce10e607be2fb.exe
    "C:\Users\Admin\AppData\Local\Temp\31939762c609b83f220ce10e607be2fb.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:2792
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 880
      2⤵
      • Program crash
      PID:2900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\Tar1B72.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2792-1-0x0000000000550000-0x0000000000650000-memory.dmp

    Filesize

    1024KB

  • memory/2792-3-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/2792-2-0x00000000002F0000-0x000000000038D000-memory.dmp

    Filesize

    628KB

  • memory/2792-43-0x0000000000400000-0x00000000004C2000-memory.dmp

    Filesize

    776KB

  • memory/2792-63-0x0000000000550000-0x0000000000650000-memory.dmp

    Filesize

    1024KB