Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    23-05-2024 14:21

General

  • Target

    5a273c6dfd7b925f11e622ae164fb3b1b16f41519ad3aff52b0c33cacd55952d.exe

  • Size

    4.2MB

  • MD5

    32731fefb5badec0681ed1664d552d0d

  • SHA1

    46f92f493f4458bcfa0677571a8bf79607e365d3

  • SHA256

    5a273c6dfd7b925f11e622ae164fb3b1b16f41519ad3aff52b0c33cacd55952d

  • SHA512

    a1d07ab13003ba08b24a823f8ad9ba7df695f1192977d18a94c71ee6332fafb34ed3db6197fc0abacb3e47fcfce34c7ae39cb43fc62440354879127d7bd20f0b

  • SSDEEP

    49152:yYREXSVMDi3vbXsPNIULkmp1/j6AeXZG7wmpvGF1IP9z5WuHC4O8b8ITDnl27PLn:X2SVMD8vbXsPN5kiQaZ56

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\5a273c6dfd7b925f11e622ae164fb3b1b16f41519ad3aff52b0c33cacd55952d.exe
    "C:\Users\Admin\AppData\Local\Temp\5a273c6dfd7b925f11e622ae164fb3b1b16f41519ad3aff52b0c33cacd55952d.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2180
    • 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:108
    • C:\Users\Admin\AppData\Local\Temp\HD_5a273c6dfd7b925f11e622ae164fb3b1b16f41519ad3aff52b0c33cacd55952d.exe
      C:\Users\Admin\AppData\Local\Temp\HD_5a273c6dfd7b925f11e622ae164fb3b1b16f41519ad3aff52b0c33cacd55952d.exe
      2⤵
      • Executes dropped EXE
      PID:2668
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "svchcst"
    1⤵
      PID:2832
    • 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:2280
      • C:\Windows\SysWOW64\svchcst.exe
        C:\Windows\system32\svchcst.exe "c:\windows\system32\259393220.bat",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2764

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      1.2MB

      MD5

      55b2f37b840dc6c20e5f4a4810d3ffab

      SHA1

      cd37161e0d6fcdb6e40def756ea9157852a0f40c

      SHA256

      c73a0e8281ffa34581f3b5aede52e04052c0fb90e75df72db137aa4001efbdcd

      SHA512

      ff6ab54ae080f39efac1d04cc92be69fa07195fc7671f03f2d535ea837f4731491385b2e12b133a15bc87821b55d0101aab796720651b3bc8f14b60278b7177a

    • \Users\Admin\AppData\Local\Temp\HD_5a273c6dfd7b925f11e622ae164fb3b1b16f41519ad3aff52b0c33cacd55952d.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\259393220.bat
      Filesize

      51KB

      MD5

      52c5c16eeda50363497cce971d203301

      SHA1

      50141ea71fbd77c8a183151122d8ceb57197de11

      SHA256

      862ff540dd80f58169eea8f53be0dba5e111c6c241aadf8f8e401da5b5c95ccc

      SHA512

      357b5fdb65c80c5b700f0d0659dc3123c895f851bf3a4b68b936be40a1dc89ff151557ca85dbcf005270ba41d05c97b4b2692250e636f9266344810c719e4d0b

    • \Windows\SysWOW64\svchcst.exe
      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d