Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28-12-2023 10:22

General

  • Target

    d89c941f24184dae521e0c528d54b0fb.exe

  • Size

    539KB

  • MD5

    d89c941f24184dae521e0c528d54b0fb

  • SHA1

    389e916b7e91f95ee5bf2a02372897c9626c4a67

  • SHA256

    a2c32c272c564873a80bdfe148ba4a23ca64b821546556e4076923a0db1c931f

  • SHA512

    b2188e04e0aedf7362008bbf20b4e10162c9c932e0f88f0d5109b8f07bad96bbd35b57e118e677213fdccde0a6bacba4c8d27791126b9d8919e3c28aa505bba4

  • SSDEEP

    12288:0YFBtBFov+xOZuX86JY1oowOZ6XxAiVrjJgostVH8V:0PGs8XfeXv6T7YHH8V

Score
10/10

Malware Config

Extracted

Family

vidar

Version

39.8

Botnet

921

C2

https://xeronxikxxx.tumblr.com/

Attributes
  • profile_id

    921

Signatures

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d89c941f24184dae521e0c528d54b0fb.exe
    "C:\Users\Admin\AppData\Local\Temp\d89c941f24184dae521e0c528d54b0fb.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2072
    • C:\Users\Admin\AppData\Local\Temp\d89c941f24184dae521e0c528d54b0fb.exe
      C:\Users\Admin\AppData\Local\Temp\d89c941f24184dae521e0c528d54b0fb.exe
      2⤵
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:2696
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2696 -s 852
        3⤵
        • Program crash
        PID:1544

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\Local\Temp\Cab825B.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar826E.tmp
    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

  • memory/2072-0-0x0000000000C10000-0x0000000000C9A000-memory.dmp
    Filesize

    552KB

  • memory/2072-1-0x00000000747E0000-0x0000000074ECE000-memory.dmp
    Filesize

    6.9MB

  • memory/2072-2-0x00000000049D0000-0x0000000004A10000-memory.dmp
    Filesize

    256KB

  • memory/2072-3-0x00000000002A0000-0x00000000002B4000-memory.dmp
    Filesize

    80KB

  • memory/2072-6-0x00000000747E0000-0x0000000074ECE000-memory.dmp
    Filesize

    6.9MB

  • memory/2696-4-0x0000000000400000-0x00000000004A1000-memory.dmp
    Filesize

    644KB

  • memory/2696-7-0x0000000000400000-0x00000000004A1000-memory.dmp
    Filesize

    644KB

  • memory/2696-8-0x0000000000400000-0x00000000004A1000-memory.dmp
    Filesize

    644KB

  • memory/2696-59-0x0000000000400000-0x00000000004A1000-memory.dmp
    Filesize

    644KB