Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    25-05-2024 17:18

General

  • Target

    4f86e6f0e082b4407bfa37f16f986703ae78d9669a8d9699bdbbea14e8589313.exe

  • Size

    2.5MB

  • MD5

    cd64763765fb7841260e80794d787450

  • SHA1

    a4482e5def5b99d199cfdcf4cb70aa892cd99f65

  • SHA256

    4f86e6f0e082b4407bfa37f16f986703ae78d9669a8d9699bdbbea14e8589313

  • SHA512

    0495fa74808ed4699e53d6ad5a55ff7037c4f0f41270539e94cad21cca18397d6ff7cc2db8177ad4145d470f7b36a938fd4f7fc0ee2cf3eb21ae770f76bfeab2

  • SSDEEP

    49152:8QZAdVyVT9n/Gg0P+Who7Gz86RWa2Qgmp/fbTc/x:9GdVyVT9nOgmhKGz7Wa2QFMZ

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\4f86e6f0e082b4407bfa37f16f986703ae78d9669a8d9699bdbbea14e8589313.exe
    "C:\Users\Admin\AppData\Local\Temp\4f86e6f0e082b4407bfa37f16f986703ae78d9669a8d9699bdbbea14e8589313.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2108
    • 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:1056
      • 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:2648
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • Runs ping.exe
          PID:2664
    • 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:2716
    • C:\Users\Admin\AppData\Local\Temp\HD_4f86e6f0e082b4407bfa37f16f986703ae78d9669a8d9699bdbbea14e8589313.exe
      C:\Users\Admin\AppData\Local\Temp\HD_4f86e6f0e082b4407bfa37f16f986703ae78d9669a8d9699bdbbea14e8589313.exe
      2⤵
      • Executes dropped EXE
      PID:1564
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2796
    • 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:2712
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k "Ö÷¶¯·ÀÓù·þÎñÄ£¿é"
    1⤵
      PID:2764
    • 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:2684
      • C:\Windows\SysWOW64\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe
        C:\Windows\system32\Ö÷¶¯·ÀÓù·þÎñÄ£¿é.exe "c:\windows\system32\259397557.txt",MainThread
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:1324

    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_4f86e6f0e082b4407bfa37f16f986703ae78d9669a8d9699bdbbea14e8589313.exe
      Filesize

      1.3MB

      MD5

      ded0df030a8a9b39a769aa6fae9c6aaa

      SHA1

      8dadfc07e93b33d30109a646f05b68eda8f7aada

      SHA256

      f5dbe62e3340fbb50a1c5b3c54bc97eca0b54edc965ede95d18b5968c5a7c881

      SHA512

      ec950c429302a740c94f5fa6c13d2bb2084320ddf770128c09c31098aa006fb8756a0139afb7a5d1abe64b0d20555f341e1fe1c1f5b435dc5afaf5a916c8945f

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

      1.3MB

      MD5

      e459bae92d0d6395f4e754a0fd9681a0

      SHA1

      f7cb2f40791122f3581a4fe1ccedfaea27eb538c

      SHA256

      44c5e3f1887e82dd2b8ca466838cb8476414d9d5bb1e4805208c9e0e42f928a3

      SHA512

      dca9f29766d314fd37480ec60bcf21a684999da49c929c7a1da7dfd3d1b7fb963fd2d51996cb0b0ac8b1abdb8d350e2aae238e9ad57081e10fd859112387a6c5

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

      377KB

      MD5

      a4329177954d4104005bce3020e5ef59

      SHA1

      23c29e295e2dbb8454012d619ca3f81e4c16e85a

      SHA256

      6156d003d54dcf2ee92f21bd6e7a6a7f91730bd2804381260bcabe465abe6ddd

      SHA512

      81e9d456a4abfc7cd9e0943d4a0ce15523362c3179f3368381d1d7974f80a9f9113b5404b96e67e91684e0ea1895b7d0073e4c48d0bfc4fd0244b1af6acf0208

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

      93KB

      MD5

      3b377ad877a942ec9f60ea285f7119a2

      SHA1

      60b23987b20d913982f723ab375eef50fafa6c70

      SHA256

      62954fdf65e629b39a29f539619d20691332184c6b6be5a826128a8e759bfa84

      SHA512

      af3a71f867ad9d28772c48b521097f9bf8931eb89fd2974e8de10990241419a39ddc3c0b36dd38aac4fdf14e1f0c5e228692618e93adce958d5b5dab8940e46f

    • \Windows\SysWOW64\259397557.txt
      Filesize

      50KB

      MD5

      86c5bb7fb9d42f5331c1d223a53d9cad

      SHA1

      5231d0434ce678a8a623585ad23e02b3378bd24d

      SHA256

      9e1979bf564aca44d00e22653cd43865281d456be6a4a697414143760573bfd6

      SHA512

      6b173722a832267f90da0bef25a0b5c094d1a17f599b62922740cd16ea188c4e77cd02a4de4631f871e18261991105490f173092f56d2d7ee2cddc0ccc74de47

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

      43KB

      MD5

      51138beea3e2c21ec44d0932c71762a8

      SHA1

      8939cf35447b22dd2c6e6f443446acc1bf986d58

      SHA256

      5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

      SHA512

      794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

    • memory/1056-5-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/1056-7-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/1056-8-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/1056-12-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/1564-87-0x0000000000400000-0x000000000065A000-memory.dmp
      Filesize

      2.4MB

    • memory/2108-50-0x0000000002A20000-0x0000000002C7A000-memory.dmp
      Filesize

      2.4MB

    • memory/2108-101-0x0000000002A20000-0x0000000002C7A000-memory.dmp
      Filesize

      2.4MB

    • memory/2712-38-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2712-34-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2712-88-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2796-36-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB

    • memory/2796-22-0x0000000010000000-0x00000000101B6000-memory.dmp
      Filesize

      1.7MB