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Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    10/03/2024, 15:57

General

  • Target

    1b8db4bff25dd1ee2ef9a4549fd3a3e37a70699637b9bdb6c3f022d43086eabb.exe

  • Size

    4.2MB

  • MD5

    6e440bb3cee5b332c2f90ecd33ade1b1

  • SHA1

    e55a94ea07a3ed3ff8d799434bed799712b23003

  • SHA256

    1b8db4bff25dd1ee2ef9a4549fd3a3e37a70699637b9bdb6c3f022d43086eabb

  • SHA512

    21c6f3c7d04c67f943216079e1065a0902c984de39f7ddb4028eb4ffd7c325ae7fad9f2287a63ce3e052fb4a06f3641136d39cf269ee77e9d987e4efa80a449a

  • SSDEEP

    49152:fYREXSVMDi3zbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PLn:g2SVMD8zbXsPN5kiQaZ56

Malware Config

Signatures

  • Gh0st RAT payload 1 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 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b8db4bff25dd1ee2ef9a4549fd3a3e37a70699637b9bdb6c3f022d43086eabb.exe
    "C:\Users\Admin\AppData\Local\Temp\1b8db4bff25dd1ee2ef9a4549fd3a3e37a70699637b9bdb6c3f022d43086eabb.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2064
    • 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:2096
    • C:\Users\Admin\AppData\Local\Temp\HD_1b8db4bff25dd1ee2ef9a4549fd3a3e37a70699637b9bdb6c3f022d43086eabb.exe
      C:\Users\Admin\AppData\Local\Temp\HD_1b8db4bff25dd1ee2ef9a4549fd3a3e37a70699637b9bdb6c3f022d43086eabb.exe
      2⤵
      • Executes dropped EXE
      PID:2544
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "svchcst"
    1⤵
      PID:2900
    • 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:2896
      • C:\Windows\SysWOW64\svchcst.exe
        C:\Windows\system32\svchcst.exe "c:\windows\system32\259401660.bat",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2568

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\HD_X.dat

      Filesize

      1.1MB

      MD5

      48defcde41a9c7cd2a2d13edbbf28ae0

      SHA1

      2d40ee439ad27e3f40e871848066e95758cd2ab3

      SHA256

      4b6ee6e6d98c82a93a6a49faffe0dce2aa066fa6b4e393dcad4a80989e4734c0

      SHA512

      39964fb03006fcedf5a73af40d297e6af82a0d1218dd21ac8b162d48af11f5bee146a352dad9b86a2fd6b9fb33a7db4842ec424074f965e0b91528e4ec468a37

    • \Users\Admin\AppData\Local\Temp\HD_1b8db4bff25dd1ee2ef9a4549fd3a3e37a70699637b9bdb6c3f022d43086eabb.exe

      Filesize

      3.1MB

      MD5

      fb083acd60fe5c3156dc25442be815e3

      SHA1

      61df59b8f3ebd8b3d29ca3aedc4995e23cacf6d8

      SHA256

      f130b3789962d5c8b59aa250d6f26ad5945928f3905b32bf65aa7bd30348a794

      SHA512

      7147337d2c1006bb15cfa967c9eea6826b63c8d343f866e7454d7368d25019f39e52cf179500810834244c3ca9644d6c0df0b2c3128a9051e9ee6b428fa926f6

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

      Filesize

      337KB

      MD5

      2f3b6f16e33e28ad75f3fdaef2567807

      SHA1

      85e907340faf1edfc9210db85a04abd43d21b741

      SHA256

      86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

      SHA512

      db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

    • \Windows\SysWOW64\259401660.bat

      Filesize

      51KB

      MD5

      16d84e9c02a1cf1c35ab2f8da9eb72b4

      SHA1

      9fe2feb7ad4f785e07624efa4a2025c6bf4d0037

      SHA256

      89213b93a099e070ec05712c55f890e1d869dc2efed2dd961731282873fe5dbf

      SHA512

      85d3c5b4b1d1a4909294bb6d338d7184079b40f94c9fb184b4617d56458b1a140ad8012fc0c0bd7ec28eee38071b68d0fd668caaf291fc2e592579ae653f271d

    • \Windows\SysWOW64\svchcst.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d