Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    21-06-2024 02:52

General

  • Target

    383cff956052e8be30070648bdfaf34402cfb6ca3d90f955861e647203da6430.exe

  • Size

    13.0MB

  • MD5

    bdfe0345a75812e8568d51722e08499b

  • SHA1

    3edd0e868318b255e1356b9b6754ba91fce20483

  • SHA256

    383cff956052e8be30070648bdfaf34402cfb6ca3d90f955861e647203da6430

  • SHA512

    3b9035ff0b2f18b565dfe83040009bfb9c93911bd09cb349fb0f57bdc94dcda5ac2bb75c1661da336353ebd1cc731856985b4eae0962d66700f95f70109d2fe2

  • SSDEEP

    196608:/KXbeO7Uon76c7/LwWVl5Ez52QhsHgi4r/HkodHaXZUZzJBWsbxbDwSrBG/:c7Pn76cfwa5EnhsSr/HyZUZ+slQP

Malware Config

Signatures

  • Detect PurpleFox Rootkit 5 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 6 IoCs
  • Gh0strat

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

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Drops file in Drivers directory 1 IoCs
  • Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 8 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 6 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\383cff956052e8be30070648bdfaf34402cfb6ca3d90f955861e647203da6430.exe
    "C:\Users\Admin\AppData\Local\Temp\383cff956052e8be30070648bdfaf34402cfb6ca3d90f955861e647203da6430.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2196
    • C:\Users\Admin\AppData\Local\Temp\R.exe
      C:\Users\Admin\AppData\Local\Temp\\R.exe
      2⤵
      • Server Software Component: Terminal Services DLL
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:2820
    • C:\Users\Admin\AppData\Local\Temp\N.exe
      C:\Users\Admin\AppData\Local\Temp\\N.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\N.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2512
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2292
    • C:\Users\Admin\AppData\Local\Temp\HD_383cff956052e8be30070648bdfaf34402cfb6ca3d90f955861e647203da6430.exe
      C:\Users\Admin\AppData\Local\Temp\HD_383cff956052e8be30070648bdfaf34402cfb6ca3d90f955861e647203da6430.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2532
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
    1⤵
      PID:2032
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Remote Data"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Windows\SysWOW64\Remote Data.exe
        "C:\Windows\system32\Remote Data.exe" "c:\windows\system32\259398228.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2848
    • C:\Windows\SysWOW64\TXPlatfor.exe
      C:\Windows\SysWOW64\TXPlatfor.exe -auto
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2804
      • C:\Windows\SysWOW64\TXPlatfor.exe
        C:\Windows\SysWOW64\TXPlatfor.exe -acsi
        2⤵
        • Drops file in Drivers directory
        • Sets service image path in registry
        • Executes dropped EXE
        • Suspicious behavior: LoadsDriver
        • Suspicious use of AdjustPrivilegeToken
        PID:2664

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Server Software Component

    1
    T1505

    Terminal Services DLL

    1
    T1505.005

    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

    Remote System Discovery

    1
    T1018

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      2.3MB

      MD5

      568537d343fdfdad8976e8b5d067f987

      SHA1

      629b986d71d235866883190a04da1243b430ee85

      SHA256

      29d19a000c57f4fe3b8a52acf452143251aef653d3c01da219dc710ad733d290

      SHA512

      84019cb5a011ced3c78d89484baea393ff97b39553345c872109d57a674c01e47be23c09dd87b75ee8b6c5f9739815aed7929b97b43bf4fe54c4871312b3838b

    • C:\Users\Admin\AppData\Local\Temp\N.exe
      Filesize

      377KB

      MD5

      4a36a48e58829c22381572b2040b6fe0

      SHA1

      f09d30e44ff7e3f20a5de307720f3ad148c6143b

      SHA256

      3de6c02f52a661b8f934f59541d0cf297bb489eb2155e346b63c7338e09aeaf8

      SHA512

      5d0ea398792f6b9eb3f188813c50b7f43929183b5733d2b595b2fd1c78722764fd15f62db1086b5c7edfb157661a6dcd544ddd80907ee7699dddbca1ef4022d0

    • C:\Users\Admin\AppData\Local\Temp\R.exe
      Filesize

      941KB

      MD5

      8dc3adf1c490211971c1e2325f1424d2

      SHA1

      4eec4a4e7cb97c5efa6c72e0731cd090c0c4adc5

      SHA256

      bc29f2022ab3b812e50c8681ff196f090c038b5ab51e37daffac4469a8c2eb2c

      SHA512

      ae92ea20b359849dcdba4808119b154e3af5ef3687ee09de1797610fe8c4d3eb9065b068074d35adddb4b225d17c619baff3944cb137ad196bcef7a6507f920d

    • \Users\Admin\AppData\Local\Temp\HD_383cff956052e8be30070648bdfaf34402cfb6ca3d90f955861e647203da6430.exe
      Filesize

      10.7MB

      MD5

      690fac0159a4ab4523508d2b775763c7

      SHA1

      037e3a2409d8c0dbedfb40ac5b89a151162ac139

      SHA256

      71eaa240cf781cfcd9e7ddce52abead60353f3bfbc7d3923a56342030b9eff49

      SHA512

      346eeda40a106420c3e30fd3e5c99475b302af10c22cb32dd15393e5429c75dfa703722d0ca22c57672d243595aafd6f5a461bf8945f5de749bd9b107a60b135

    • \Windows\SysWOW64\259398228.txt
      Filesize

      899KB

      MD5

      de3b5dbd155bfc9be49115b69458d88b

      SHA1

      3f84cfcbcfb0674fa4abed9a0530c730acb4e237

      SHA256

      3795acd6b2e9ae39bf2edcdea8c69b9c7e4e823f77c5c5f5912134aaa3d4ee8b

      SHA512

      2df817f981c8a276c479df8378cc1cfd92d2ec1998511c5c97dc37995d187e253fad92b2e28ae0132801f6c52f7839dd64ff544652b5bc22f489b701b28d499b

    • \Windows\SysWOW64\Remote Data.exe
      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2532-52-0x00000000070B0000-0x00000000071A4000-memory.dmp
      Filesize

      976KB

    • memory/2532-50-0x0000000000130000-0x0000000000BE0000-memory.dmp
      Filesize

      10.7MB

    • memory/2664-49-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2664-46-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2664-44-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2796-18-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2796-20-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2796-21-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB