Analysis

  • max time kernel
    154s
  • max time network
    155s
  • 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 12:40

General

  • Target

    f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9.exe

  • Size

    361KB

  • MD5

    6d60068e31c6367a2b65155e24b6472a

  • SHA1

    81086560b1f535396be1a20837be382832ddd887

  • SHA256

    f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9

  • SHA512

    7b61595c8a23dc60bf3e042281f112d0d3f78f42a72e340751c4dac7736700507939431d3b51238766fe3463c493aac653a832ca8425fce802ddf0ea0ee1ba42

  • SSDEEP

    6144:F7O7EkVevSrpVHXZdGCgVcaRU7JkvmzLDQD2Pz5DTAiIqT7OipGrzU4eGg47:cNVvcCgzU9k2LDQDwzhTjXpct247

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs 64 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9.exe
    "C:\Users\Admin\AppData\Local\Temp\f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1156
    • C:\Users\Admin\AppData\Local\Temp\f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9.exe
      "C:\Users\Admin\AppData\Local\Temp\f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9.exe"
      2⤵
      • Checks computer location settings
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Windows\SysWOW64\Desktop Window Manager\dwm.exe
        "C:\Windows\system32\Desktop Window Manager\dwm.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2984
        • C:\Windows\SysWOW64\Desktop Window Manager\dwm.exe
          "C:\Windows\SysWOW64\Desktop Window Manager\dwm.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Sets file execution options in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2492

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\dwm.exe.log
    Filesize

    319B

    MD5

    824ba7b7eed8b900a98dd25129c4cd83

    SHA1

    54478770b2158000ef365591d42977cb854453a1

    SHA256

    d182dd648c92e41cd62dccc65f130c07f0a96c03b32f907c3d1218e9aa5bda03

    SHA512

    ae4f3a9673711ecb6cc5d06874c587341d5094803923b53b6e982278fa64549d7acf866de165e23750facd55da556b6794c0d32f129f4087529c73acd4ffb11e

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9.exe.log
    Filesize

    319B

    MD5

    824ba7b7eed8b900a98dd25129c4cd83

    SHA1

    54478770b2158000ef365591d42977cb854453a1

    SHA256

    d182dd648c92e41cd62dccc65f130c07f0a96c03b32f907c3d1218e9aa5bda03

    SHA512

    ae4f3a9673711ecb6cc5d06874c587341d5094803923b53b6e982278fa64549d7acf866de165e23750facd55da556b6794c0d32f129f4087529c73acd4ffb11e

  • C:\Windows\SysWOW64\Desktop Window Manager\dwm.exe
    Filesize

    361KB

    MD5

    6d60068e31c6367a2b65155e24b6472a

    SHA1

    81086560b1f535396be1a20837be382832ddd887

    SHA256

    f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9

    SHA512

    7b61595c8a23dc60bf3e042281f112d0d3f78f42a72e340751c4dac7736700507939431d3b51238766fe3463c493aac653a832ca8425fce802ddf0ea0ee1ba42

  • C:\Windows\SysWOW64\Desktop Window Manager\dwm.exe
    Filesize

    361KB

    MD5

    6d60068e31c6367a2b65155e24b6472a

    SHA1

    81086560b1f535396be1a20837be382832ddd887

    SHA256

    f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9

    SHA512

    7b61595c8a23dc60bf3e042281f112d0d3f78f42a72e340751c4dac7736700507939431d3b51238766fe3463c493aac653a832ca8425fce802ddf0ea0ee1ba42

  • C:\Windows\SysWOW64\Desktop Window Manager\dwm.exe
    Filesize

    361KB

    MD5

    6d60068e31c6367a2b65155e24b6472a

    SHA1

    81086560b1f535396be1a20837be382832ddd887

    SHA256

    f6f0eea51380f4970052737e2bb775b0ad47908493b2cec23d8b0e874edb5dc9

    SHA512

    7b61595c8a23dc60bf3e042281f112d0d3f78f42a72e340751c4dac7736700507939431d3b51238766fe3463c493aac653a832ca8425fce802ddf0ea0ee1ba42

  • memory/1156-133-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/1156-132-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/1156-137-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/1980-136-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/1980-135-0x0000000000400000-0x000000000044E000-memory.dmp
    Filesize

    312KB

  • memory/1980-147-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/1980-134-0x0000000000000000-mapping.dmp
  • memory/1980-151-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/2492-142-0x0000000000000000-mapping.dmp
  • memory/2492-148-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/2492-149-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/2984-141-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB

  • memory/2984-138-0x0000000000000000-mapping.dmp
  • memory/2984-146-0x0000000074A30000-0x0000000074FE1000-memory.dmp
    Filesize

    5.7MB