Analysis

  • max time kernel
    157s
  • max time network
    170s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 15:57

General

  • Target

    a390ee271b70b2994551f070aa40ffc6a0463fb52c3111b5170a6ab50dbca3f3.exe

  • Size

    644KB

  • MD5

    43a74b2339f24d3ab63a48c6dfb9edd1

  • SHA1

    661a4e4a1f17fce80be658e27030c0d00949d2c5

  • SHA256

    a390ee271b70b2994551f070aa40ffc6a0463fb52c3111b5170a6ab50dbca3f3

  • SHA512

    211deda0edf6a981dc475406ce2ffeb53f40800834c3faed359715e07f9eb405a5d6f1684ea73274f52af25e2a5c45ad1747e8caed8d38e350e1982e49ed971c

  • SSDEEP

    12288:7c//////WwT6zphI6FQUuU6W/unAi+KkZdbxMMeVMgrQzM+i3byjaO1:7c//////TT6Fh1+U0nudbxpeVMGxul1

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a390ee271b70b2994551f070aa40ffc6a0463fb52c3111b5170a6ab50dbca3f3.exe
    "C:\Users\Admin\AppData\Local\Temp\a390ee271b70b2994551f070aa40ffc6a0463fb52c3111b5170a6ab50dbca3f3.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:984
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c "C:\Users\Admin\AppData\Local\Temp\svchos.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4444
      • C:\Users\Admin\AppData\Local\Temp\svchos.exe
        C:\Users\Admin\AppData\Local\Temp\svchos.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:900
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c "C:\Users\Admin\AppData\Local\Temp\ÂÌÉ«.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Users\Admin\AppData\Local\Temp\ÂÌÉ«.exe
        C:\Users\Admin\AppData\Local\Temp\ÂÌÉ«.exe
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetWindowsHookEx
        PID:844

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\E_4\krnln.fnr

    Filesize

    1.0MB

    MD5

    dde0681ba7a02bbb1c9b756af7e53fd2

    SHA1

    eb1310a5848614d89e71e76bf6beee497a068017

    SHA256

    f1efcaa3a7b5bf98819ec0076984f4af595d595c2553f4eec454e6d96f2bf080

    SHA512

    1f9892ea5727159e7f0ec836dac78bd6923f7b803e5f39113a14c27b4bea5353503a7b998088cdf8ad0f0920e66a241c588bec0b2cab6b02157b54ab4ce30ff1

  • C:\Users\Admin\AppData\Local\Temp\svchos.exe

    Filesize

    52KB

    MD5

    c53707cf8e3d2e42776df41a5fac3bf8

    SHA1

    6a29759f93c32f8138c8a0989094f7cfc1df7b11

    SHA256

    d3f639f39d612adefb2dcef15f8821de97b5556064cec77a3e6d7f3abeee7c4a

    SHA512

    dc053aba8ce185d6315887ec8adf6eeb505e6e847cd94bf4b73d486cf924760830e8d48b9a4e520a75def24a0343a6ed6c4980e7497223d20875b11f2afa7520

  • C:\Users\Admin\AppData\Local\Temp\svchos.exe

    Filesize

    52KB

    MD5

    c53707cf8e3d2e42776df41a5fac3bf8

    SHA1

    6a29759f93c32f8138c8a0989094f7cfc1df7b11

    SHA256

    d3f639f39d612adefb2dcef15f8821de97b5556064cec77a3e6d7f3abeee7c4a

    SHA512

    dc053aba8ce185d6315887ec8adf6eeb505e6e847cd94bf4b73d486cf924760830e8d48b9a4e520a75def24a0343a6ed6c4980e7497223d20875b11f2afa7520

  • C:\Users\Admin\AppData\Local\Temp\ÂÌÉ«.exe

    Filesize

    547KB

    MD5

    156fd0bfa8e34c9631a8a9d7c8a366d6

    SHA1

    e75e6027f10f092bde3ebbc6d99cc734cfdcdf86

    SHA256

    839e2eff174c25d897c9611ea04990f3e083a02f26b65bc1548dcd0926f5c9b6

    SHA512

    6af4a66da22c09806f42594f8d89ec2397d0d5ab94b8cfd67b6dc9769ba7332e3505f2e7b896a85ead50b6876292363dc06790d1e6cccf38ac995b3e3fd775da

  • C:\Users\Admin\AppData\Local\Temp\ÂÌÉ«.exe

    Filesize

    547KB

    MD5

    156fd0bfa8e34c9631a8a9d7c8a366d6

    SHA1

    e75e6027f10f092bde3ebbc6d99cc734cfdcdf86

    SHA256

    839e2eff174c25d897c9611ea04990f3e083a02f26b65bc1548dcd0926f5c9b6

    SHA512

    6af4a66da22c09806f42594f8d89ec2397d0d5ab94b8cfd67b6dc9769ba7332e3505f2e7b896a85ead50b6876292363dc06790d1e6cccf38ac995b3e3fd775da

  • memory/844-134-0x0000000000000000-mapping.dmp

  • memory/844-137-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/844-145-0x0000000000400000-0x000000000040E000-memory.dmp

    Filesize

    56KB

  • memory/900-138-0x0000000000000000-mapping.dmp

  • memory/2192-133-0x0000000000000000-mapping.dmp

  • memory/4444-132-0x0000000000000000-mapping.dmp