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Analysis

  • max time kernel
    150s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 05:37

General

  • Target

    tmp.exe

  • Size

    2.5MB

  • MD5

    945d2c9d9eeb48366f3f29f1038ec995

  • SHA1

    0997d0b535248bb80a0c127cab8b9dd9c3bceec3

  • SHA256

    38793cdce198f9972b28a4c2e1d1f909ae9b0ef93417ff54ab729db329733027

  • SHA512

    751686c17e6c35f02c11074553974914b5afb661fd3ffd83aed6d8882d9fb6d9ccc12b34b03e39edaedb5054074f7e3bf4094b7510c5d4071e57ea123dc0fbab

  • SSDEEP

    24576:ynsJ39LyjbJkQFMhmC+6GD9hYFbkIsaPiXSVnC7Yp9zkNmZG8RRlnPyzwOe+atyC:ynsHyjtk2MYC5GDrYREXSVMDi3XR+qf

Malware Config

Signatures

  • Gh0st RAT payload 8 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Sets DLL path for service in the registry 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4164
    • C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4112
      • C:\Users\Admin\AppData\Local\Temp\HD_._cache_tmp.exe
        C:\Users\Admin\AppData\Local\Temp\HD_._cache_tmp.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        PID:3280
      • C:\Users\Admin\AppData\Local\Temp\look2.exe
        C:\Users\Admin\AppData\Local\Temp\\look2.exe
        3⤵
        • Sets DLL path for service in the registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        PID:2000
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:984
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "svchcst"
    1⤵
      PID:5056
    • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4352
      • C:\Users\Admin\AppData\Local\Temp\HD_._cache_Synaptics.exe
        C:\Users\Admin\AppData\Local\Temp\HD_._cache_Synaptics.exe
        2⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:2996
      • C:\Users\Admin\AppData\Local\Temp\look2.exe
        C:\Users\Admin\AppData\Local\Temp\\look2.exe
        2⤵
        • Sets DLL path for service in the registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in System32 directory
        PID:828
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "svchcst"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3996
      • C:\Windows\SysWOW64\svchcst.exe
        C:\Windows\system32\svchcst.exe "c:\windows\system32\240601500.bat",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:4912

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\ProgramData\Synaptics\Synaptics.exe

      Filesize

      381KB

      MD5

      1c69ce97a9cd22c9dafe3bcf2dd91649

      SHA1

      d7f69624827996ab4195bb712b64596f2766f1b9

      SHA256

      1f9c906b61dab4e21f7939084053ef1b3f1862405d8b6e0a2f7165994095f690

      SHA512

      06a9495a69c0a05e7d741f686acb72cf6d15db9075a17b64f78e141a7e46c71b7d12710192ac543b3c943773e7727a5d04191a33ffc14142b4219cfad5e64305

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

      Filesize

      237KB

      MD5

      b91ad1410638900ffa014b1e0c52be81

      SHA1

      c6f82e224606188e88ec4a7d4bece0fe2a6a0419

      SHA256

      e37477ed4eedfb3c01e4a7fd454342bc45382945afc68991be4a88229f08620f

      SHA512

      da48d9aae9c881ecca14210dc0a347e2089e1c7dbf85d985bba2f6d6d91fe34bf9250b192ce81c5038f0d26e3507f4a7172fc1aedbb2c6d124aedad6dc44186f

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

      Filesize

      1.4MB

      MD5

      0bc9a91d06468ebaf0221fa4d689344a

      SHA1

      29aea8f607b0e5b74d6a01a0b316ef65f892c52a

      SHA256

      64941461adfc0a3f2c4cda9d52c3ec4fa24d5c2d7a74e5a101d33517103ab74c

      SHA512

      59038e153631aaa6d44cb08a79c7e1df7e7c4061fffefaf88b4ef7dc67417967ac46cf653c5b68e1fbe70e57266c1902598e3e000baff06c867b2fd20715df55

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

      Filesize

      1.4MB

      MD5

      51319467c85b5c80b87756cffddbbf8b

      SHA1

      4545cb2ce80def86895cf24f5a1fdb19111e97c1

      SHA256

      5fdb4701555607d3b2f300fd2cd17c7dd942897e0dfe5b0db7032ae8b8df9a75

      SHA512

      477621ef9ab07b23c3018287626df11e07173422d8684f5949319b4f025b513d6a0b30d1f4f945135f444418ea88fbb2bed902da768948e7b314ef7fcf4870cf

    • C:\Users\Admin\AppData\Local\Temp\look2.exe

      Filesize

      337KB

      MD5

      2f3b6f16e33e28ad75f3fdaef2567807

      SHA1

      85e907340faf1edfc9210db85a04abd43d21b741

      SHA256

      86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

      SHA512

      db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

    • memory/984-286-0x0000000000400000-0x0000000000685000-memory.dmp

      Filesize

      2.5MB

    • memory/984-270-0x0000000000400000-0x0000000000685000-memory.dmp

      Filesize

      2.5MB

    • memory/984-264-0x00000000007D0000-0x00000000007D1000-memory.dmp

      Filesize

      4KB

    • memory/984-262-0x0000000000400000-0x0000000000685000-memory.dmp

      Filesize

      2.5MB

    • memory/984-145-0x00000000007D0000-0x00000000007D1000-memory.dmp

      Filesize

      4KB

    • memory/2996-237-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/2996-236-0x0000000000740000-0x0000000000741000-memory.dmp

      Filesize

      4KB

    • memory/2996-234-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/2996-239-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/2996-235-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/3280-200-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/3280-201-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/3280-204-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/3280-265-0x0000000000610000-0x0000000000611000-memory.dmp

      Filesize

      4KB

    • memory/3280-202-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/3280-180-0x0000000010000000-0x0000000010121000-memory.dmp

      Filesize

      1.1MB

    • memory/4164-0-0x0000000002420000-0x0000000002421000-memory.dmp

      Filesize

      4KB

    • memory/4164-135-0x0000000000400000-0x0000000000685000-memory.dmp

      Filesize

      2.5MB