Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    01-07-2024 04:33

General

  • Target

    cd6b7d841ec4db91085ac2ac007b803a14de310a6710b016870ceaa4731d0134.exe

  • Size

    5.0MB

  • MD5

    a27b4e2bcd80378f6345aecf7bf12739

  • SHA1

    a0aecd8e8741b457df1daca22428c38553075b63

  • SHA256

    cd6b7d841ec4db91085ac2ac007b803a14de310a6710b016870ceaa4731d0134

  • SHA512

    7938ae9e374ea12af89fd3d3cdd9d87ca6b6d5b8559e2510815c30220ea370c577d937aadef8dd436d27a3c0c6511007133f77c8fb73d085bdc0142b4e00fb15

  • SSDEEP

    98304:UGdVyVT9nOgmhucsSPjWdYd32wDDxUIDKAY+jhRoJ+2+jB0qFDku/kdeE:rWT9nO7oKf2wZnRoBp4ku/kV

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
  • 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 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).

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd6b7d841ec4db91085ac2ac007b803a14de310a6710b016870ceaa4731d0134.exe
    "C:\Users\Admin\AppData\Local\Temp\cd6b7d841ec4db91085ac2ac007b803a14de310a6710b016870ceaa4731d0134.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1412
    • 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:2360
      • 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:2748
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2868
    • C:\Users\Admin\AppData\Local\Temp\svchos.exe
      C:\Users\Admin\AppData\Local\Temp\\svchos.exe
      2⤵
      • Server Software Component: Terminal Services DLL
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in System32 directory
      PID:2772
    • C:\Users\Admin\AppData\Local\Temp\HD_cd6b7d841ec4db91085ac2ac007b803a14de310a6710b016870ceaa4731d0134.exe
      C:\Users\Admin\AppData\Local\Temp\HD_cd6b7d841ec4db91085ac2ac007b803a14de310a6710b016870ceaa4731d0134.exe
      2⤵
      • Executes dropped EXE
      PID:2604
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2980
    • 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:2760
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:2780
    • 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:2540
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259396450.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1976

    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:\Program Files\VideoLAN\VLC\vlc.exe
      Filesize

      2.3MB

      MD5

      3dcb71f03da3f63094c3156e74fee982

      SHA1

      a51271862bd336114126ca6b158f500046abe6fa

      SHA256

      021c8e13de4fd176969828abc0d98d642500f519fcebf637c6d2727fefb3b91f

      SHA512

      ac37dfad663d635ea6d3b5da95dce9368f791a8ad40b0f0c89fc41969f34ca6b44cadd3c3fb3933e952928ea6b5ce0c25dc7cb9cfbddc2a8c32a4fbb25846c64

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

      1.4MB

      MD5

      5df93fccb9c6caa13d120210f6571070

      SHA1

      5ced8221feac435ddbd90d38446eba5357588a39

      SHA256

      5ce78eb80024037b7f4ce9d85ff042a98f3e602cebd5f08fb3bb789021526ae0

      SHA512

      502fa9c36eeb24dc4c86cd5b4f04fac582324da5c030a669abc87942a405a73c5c57adac51f07683f911e237733fcecbd2cf66b4c382d1533ffb95a3460f5849

    • \Users\Admin\AppData\Local\Temp\HD_cd6b7d841ec4db91085ac2ac007b803a14de310a6710b016870ceaa4731d0134.exe
      Filesize

      3.7MB

      MD5

      2c6c1595300991b2997efe6a8625f26b

      SHA1

      be92db2ca945a384a30e8ef679cb4b41263b6a9f

      SHA256

      9edca92851ee75358c99e40a73ba6d7368c5e0016a74c3e354f6b6f057673579

      SHA512

      e557e7a43316342b8ee17ad9b9b4aa845a438262035d018f300724152e9c0f9527cb0ebe21fb528b92c40197961f8e4bbb928bc038b0a08057c217b1c9434b21

    • \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\259396450.txt
      Filesize

      50KB

      MD5

      03b7203056a8f84f61da5df3fbccc70d

      SHA1

      d8e4a3235e865cdec8605fe311683e661eec2a9f

      SHA256

      27285f33318e88b9f5bf47701baf031e09e7d20a0cc0c6517a56b7bbbc589552

      SHA512

      1f0ead885820bb728ec4cb92ca5b73953d2384e90d31702ca461f47d2627f8591ebd543b7877f7727eb7bc663eab37b3ca1d72341880a4d4aaaae67bd687af72

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

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2360-7-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2360-9-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2360-8-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2360-5-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2760-32-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2760-35-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2760-40-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2980-25-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2980-18-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB