Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 16:36

General

  • Target

    8863c9e88e409139c621710e3dbdb7989874f11bf582a31cbd03d55a8318ed27.exe

  • Size

    3.6MB

  • MD5

    6c017a7c25ced7d96b5bb59adc65aaec

  • SHA1

    be3b20c1a16d9b5e16a37536fdaa701ef1b42ce6

  • SHA256

    8863c9e88e409139c621710e3dbdb7989874f11bf582a31cbd03d55a8318ed27

  • SHA512

    800bf235c35261aa898e25aad7e597f6981eee1729251da819d48982949da730e0f6626122b0423b5ca617b3d6acfba9276329050de9fd9c81f5320582d17f37

  • SSDEEP

    49152:jQZAdVyVT9n/Gg0P+WhoXiNrXXZXDrdBaAdvUk6I9Hd7bs8BA5KYh7hn+7FP0qfs:EGdVyVT9nOgmhFNrXXZvvGhNnicwMge

Malware Config

Signatures

  • Detect PurpleFox Rootkit 9 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 10 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 8 IoCs
  • UPX packed file 10 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\8863c9e88e409139c621710e3dbdb7989874f11bf582a31cbd03d55a8318ed27.exe
    "C:\Users\Admin\AppData\Local\Temp\8863c9e88e409139c621710e3dbdb7989874f11bf582a31cbd03d55a8318ed27.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2664
    • 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:2520
      • 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:2492
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2336
    • 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:2452
    • C:\Users\Admin\AppData\Local\Temp\HD_8863c9e88e409139c621710e3dbdb7989874f11bf582a31cbd03d55a8318ed27.exe
      C:\Users\Admin\AppData\Local\Temp\HD_8863c9e88e409139c621710e3dbdb7989874f11bf582a31cbd03d55a8318ed27.exe
      2⤵
      • Executes dropped EXE
      PID:2256
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2676
    • 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:2340
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:2456
    • 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:2744
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259405669.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1968

    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

      1.3MB

      MD5

      5a88b69dc04401ec052caabc9f7c468e

      SHA1

      c0ffeb357417b8d379e4b1ef95a73ec8417307b6

      SHA256

      909dc2a37adfb6d51c72c98df13496a82d4aa233c786f837b80709a4a65ab65c

      SHA512

      7149324ef5240cb28344163de58813f2656b8a34651054604e735d6126df886e02e5af23dded674fbeae3ba74b4839535f79d24f3bd87e70dc7340bd11e4ea81

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

      93KB

      MD5

      3b377ad877a942ec9f60ea285f7119a2

      SHA1

      60b23987b20d913982f723ab375eef50fafa6c70

      SHA256

      62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

      SHA512

      af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

    • \Users\Admin\AppData\Local\Temp\HD_8863c9e88e409139c621710e3dbdb7989874f11bf582a31cbd03d55a8318ed27.exe
      Filesize

      2.3MB

      MD5

      dcf18d969fe50dd15be16088c9d30d02

      SHA1

      f45b2bdff3741b895189897e1e9dd49fce10bd3a

      SHA256

      0d14b157818d5e52fb2e6c5ed3651cf37434d1a3f8dbee3d9c6d01d69d140155

      SHA512

      1674adfdcf4ca8cc3905e26b43a002b94882dfc886ce86d2904c32e35bf143680963883033e90d18031344b92f6d744f7f5d49cfd27b599974809f881a5c13b0

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

      377KB

      MD5

      a4329177954d4104005bce3020e5ef59

      SHA1

      23c29e295e2dbb8454012d619ca3f81e4c16e85a

      SHA256

      6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

      SHA512

      81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

    • \Windows\SysWOW64\259405669.txt
      Filesize

      50KB

      MD5

      e71c8aa81360f7fbf4acbcee12a7a967

      SHA1

      e1e5a5836b6d026f3b1208af7ee7e764b9c04b9d

      SHA256

      e2b38a4ef1b08afca57a4c398255506c8cdff336db56abcc17287aeb901a33c8

      SHA512

      689f0acf70f8aeefc181d69d2ee6f8a570adb01adba3d334d7bb68e18a1f094cf722699724f39ae5b6ba3bf0a516a90085889e79d8deb9f989e619587c9f5a86

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

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/2340-38-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2340-34-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2340-32-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2340-39-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2520-25-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2520-9-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2520-5-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2520-7-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2676-33-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2676-18-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB