Analysis

  • max time kernel
    102s
  • max time network
    116s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    17-08-2022 06:06

General

  • Target

    b1a54aa41872cf32808a7f8453edad44.exe

  • Size

    112KB

  • MD5

    b1a54aa41872cf32808a7f8453edad44

  • SHA1

    b039946b52f84142cf2addab8181564abb5f6550

  • SHA256

    2c7de522a0b7230acc514fecdfeaf05e9578fded236ad1337551fd42d4ac7c49

  • SHA512

    923760294a8a8bd4b274bf64181c98d6b8ce01930280b1e8d1721c66c3cf63d6d3423fe28025c172264b6f1ba38406e49a8830e17d759a26eaf94783b9d4adae

Malware Config

Signatures

  • Gh0st RAT payload 7 IoCs
  • Gh0strat

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

  • Executes dropped EXE 1 IoCs
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Creates a Windows Service
  • Drops file in System32 directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1a54aa41872cf32808a7f8453edad44.exe
    "C:\Users\Admin\AppData\Local\Temp\b1a54aa41872cf32808a7f8453edad44.exe"
    1⤵
    • Sets DLL path for service in the registry
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1676
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\b1a54aa41872cf32808a7f8453edad44.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 1
        3⤵
        • Runs ping.exe
        PID:1132
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "serivces"
    1⤵
      PID:2004
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "serivces"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:908
      • C:\Windows\SysWOW64\serivces.exe
        C:\Windows\system32\serivces.exe "c:\windows\fonts\7085924.dll",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2032

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\serivces.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • C:\Windows\SysWOW64\serivces.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • \??\c:\windows\fonts\7085924.dll

      Filesize

      37KB

      MD5

      bea37c754138109355b34f1ebc6defc5

      SHA1

      3efd45599dd8b2cb8034453a63d2c919eeded3e6

      SHA256

      08c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292

      SHA512

      683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d

    • \Windows\Fonts\7085924.dll

      Filesize

      37KB

      MD5

      bea37c754138109355b34f1ebc6defc5

      SHA1

      3efd45599dd8b2cb8034453a63d2c919eeded3e6

      SHA256

      08c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292

      SHA512

      683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d

    • \Windows\Fonts\7085924.dll

      Filesize

      37KB

      MD5

      bea37c754138109355b34f1ebc6defc5

      SHA1

      3efd45599dd8b2cb8034453a63d2c919eeded3e6

      SHA256

      08c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292

      SHA512

      683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d

    • \Windows\Fonts\7085924.dll

      Filesize

      37KB

      MD5

      bea37c754138109355b34f1ebc6defc5

      SHA1

      3efd45599dd8b2cb8034453a63d2c919eeded3e6

      SHA256

      08c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292

      SHA512

      683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d

    • \Windows\Fonts\7085924.dll

      Filesize

      37KB

      MD5

      bea37c754138109355b34f1ebc6defc5

      SHA1

      3efd45599dd8b2cb8034453a63d2c919eeded3e6

      SHA256

      08c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292

      SHA512

      683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d

    • \Windows\Fonts\7085924.dll

      Filesize

      37KB

      MD5

      bea37c754138109355b34f1ebc6defc5

      SHA1

      3efd45599dd8b2cb8034453a63d2c919eeded3e6

      SHA256

      08c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292

      SHA512

      683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d

    • \Windows\Fonts\7085924.dll

      Filesize

      37KB

      MD5

      bea37c754138109355b34f1ebc6defc5

      SHA1

      3efd45599dd8b2cb8034453a63d2c919eeded3e6

      SHA256

      08c5a2bcfce6d00aebd9e3c41210e935a7fdc2bb6237fc53eb06c99edf0ac292

      SHA512

      683aafeda26d3df844aaf1e74e4621f27f80ccf6a1b21865b78a134cde92119613a81ec774f184fc53fc387de097a07ff257ab91dadda5874d70ea84dfa2b64d

    • \Windows\SysWOW64\serivces.exe

      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/1132-59-0x0000000000000000-mapping.dmp

    • memory/1332-58-0x0000000000000000-mapping.dmp

    • memory/1676-54-0x0000000075D91000-0x0000000075D93000-memory.dmp

      Filesize

      8KB

    • memory/2032-61-0x0000000000000000-mapping.dmp