Analysis

  • max time kernel
    150s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 16:34

General

  • Target

    be787e97c2e5d24751df8535032a7f149932ffdf76fa1130b59abc926f9a46b8.exe

  • Size

    2.2MB

  • MD5

    81ad7a53fc5e0cc9bb52f83bdfcf10bf

  • SHA1

    f87ab4a7a63f682270c448f5c9572e568d25ce65

  • SHA256

    be787e97c2e5d24751df8535032a7f149932ffdf76fa1130b59abc926f9a46b8

  • SHA512

    8979a660c17009c9507b46b4e665fca6c19d8fb36cfe1b3196742765d913b49199a8aac58d6f7bfef861049433fbeb6c84576eb931ed3ee86a2bf170ff7de04e

  • SSDEEP

    24576:BQZoidOTdVZinacCET9Ecl1erdg0MCiVWhFU7cVxI4Hd5JW4CWIDuqx4bpyzn+1R:BQZAdVyVT9n/Gg0P+WhoyVIDsbpBhR

Malware Config

Signatures

  • Detect PurpleFox Rootkit 8 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 9 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
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 14 IoCs
  • UPX packed file 9 IoCs

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

  • Drops file in System32 directory 6 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\be787e97c2e5d24751df8535032a7f149932ffdf76fa1130b59abc926f9a46b8.exe
    "C:\Users\Admin\AppData\Local\Temp\be787e97c2e5d24751df8535032a7f149932ffdf76fa1130b59abc926f9a46b8.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2896
    • C:\Users\Admin\AppData\Local\Temp\svchost.exe
      C:\Users\Admin\AppData\Local\Temp\\svchost.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2968
      • 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\svchost.exe > nul
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2568
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2628
    • C:\Users\Admin\AppData\Local\Temp\svchos.exe
      C:\Users\Admin\AppData\Local\Temp\\svchos.exe
      2⤵
      • Sets DLL path for service in the registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:2604
    • C:\Users\Admin\AppData\Local\Temp\HD_be787e97c2e5d24751df8535032a7f149932ffdf76fa1130b59abc926f9a46b8.exe
      C:\Users\Admin\AppData\Local\Temp\HD_be787e97c2e5d24751df8535032a7f149932ffdf76fa1130b59abc926f9a46b8.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2468
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2468 -s 300
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:764
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Windows\SysWOW64\TXPlatforn.exe
      C:\Windows\SysWOW64\TXPlatforn.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:2744
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:2752
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
      1⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259394624.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:928

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    2
    T1547.001

    Privilege Escalation

    Boot or Logon Autostart Execution

    2
    T1547

    Registry Run Keys / Startup Folder

    2
    T1547.001

    Defense Evasion

    Modify Registry

    2
    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

      1.2MB

      MD5

      9c5d4d5277d82fa2b166c520478554d6

      SHA1

      76497143a8fc078a4ea1f03abc30fc2defc2f7d9

      SHA256

      89be51cbcd5823b66c634958f63418b3dcbc261e38ceef781e4307b98b166bf6

      SHA512

      abcb3715f3194b4c95c366a8f40daca61d5323da1952af7a24ed9e759a04c1db25830e759ea224dd0c537d4613408c7890d74041b82fe1f1e57c04958a3783ea

    • C:\Users\Admin\AppData\Local\Temp\HD_be787e97c2e5d24751df8535032a7f149932ffdf76fa1130b59abc926f9a46b8.exe
      Filesize

      980KB

      MD5

      1715338690a1957612b0db4eacdc5ba9

      SHA1

      c2fbd4b9a1c57f8ea3ea645eb0f5756a52b7afa4

      SHA256

      6bc9426fdeb55c94f2d9560ba1a140e83d3be3deb52f7c5f22c859c7fecc6e57

      SHA512

      93bf1b5cf241cfc7e6cbad87ff63d606aa31086d39c0b90227c463a3671f2b905ade0249c85aebabc6a24ed2c4c9e4666fff3158ac4707c985a6dc4c3e48e43f

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

      93KB

      MD5

      3b377ad877a942ec9f60ea285f7119a2

      SHA1

      60b23987b20d913982f723ab375eef50fafa6c70

      SHA256

      62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

      SHA512

      af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

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

      377KB

      MD5

      a4329177954d4104005bce3020e5ef59

      SHA1

      23c29e295e2dbb8454012d619ca3f81e4c16e85a

      SHA256

      6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

      SHA512

      81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

    • \Windows\SysWOW64\259394624.txt
      Filesize

      50KB

      MD5

      bd7de3a5548794431af5f59627a6bb85

      SHA1

      42309b6ed13b10c4e73aa006b5b08e382d4504ae

      SHA256

      bce282268a224e72a61770b656147d8dcdf2dcf431beead0dd10f6b99c61875d

      SHA512

      3a6622a1e76c3c5dcbd4febe31d27a55e801ab725880978b932c986cef3b01508f7e6689c15a8a2e341358b0917f1b5b4a5fd635584e2da91d7131a2dd01a39b

    • \Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
      Filesize

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2744-41-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2744-55-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2744-47-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2968-9-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2968-24-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2968-7-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2968-5-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3024-32-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/3024-18-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB