Resubmissions

16/04/2025, 18:45

250416-xd1mzatzdv 10

16/04/2025, 12:17

250416-pf3w4s1thx 10

Analysis

  • max time kernel
    150s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250410-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/04/2025, 12:17

General

  • Target

    5a76298548ae9c83e529d3085c1b216f624931bbcbb10022017b79c107641f18.exe

  • Size

    2.3MB

  • MD5

    d903afa6de2637d872d5f8fe78598a4a

  • SHA1

    bea55aa9f047f3bea7402fb375b3ffa378e7b014

  • SHA256

    5a76298548ae9c83e529d3085c1b216f624931bbcbb10022017b79c107641f18

  • SHA512

    6ecf1b60445abef91824cd984ceb73c5430b7eb91ae8f453053657fcf2c29bd07ccf1a070630ec450c6060e1346144e2f3baacfdd5e54888f37a0b33f61a5414

  • SSDEEP

    49152:yxTc2H2tFvduySQqvQTcbRvaH3LNI8oQ736x9jDR3lUPmdm7OTOMsf7deXHBo0Ms:wcy2LkQqvQTcbRvaH3LNI8oQgtF1wmdV

Malware Config

Signatures

  • Detect PurpleFox Rootkit 10 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.

  • Gh0strat family
  • PurpleFox

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

  • Purplefox family
  • Drops file in Drivers directory 1 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 4 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 2 IoCs
  • UPX packed file 12 IoCs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a76298548ae9c83e529d3085c1b216f624931bbcbb10022017b79c107641f18.exe
    "C:\Users\Admin\AppData\Local\Temp\5a76298548ae9c83e529d3085c1b216f624931bbcbb10022017b79c107641f18.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:428
    • C:\Users\Admin\AppData\Local\Temp\RVN.exe
      C:\Users\Admin\AppData\Local\Temp\\RVN.exe
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4300
      • 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\RVN.exe > nul
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:1368
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 2 127.0.0.1
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:3568
    • C:\Users\Admin\AppData\Local\Temp\HD_5a76298548ae9c83e529d3085c1b216f624931bbcbb10022017b79c107641f18.exe
      C:\Users\Admin\AppData\Local\Temp\HD_5a76298548ae9c83e529d3085c1b216f624931bbcbb10022017b79c107641f18.exe
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Enumerates connected drives
      • Writes to the Master Boot Record (MBR)
      • System Location Discovery: System Language Discovery
      • Enumerates system info in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:424
  • C:\Windows\SysWOW64\TXPlatforn.exe
    C:\Windows\SysWOW64\TXPlatforn.exe -auto
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1640
    • 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:5224

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\HD_5a76298548ae9c83e529d3085c1b216f624931bbcbb10022017b79c107641f18.exe

    Filesize

    1.6MB

    MD5

    718e491431c6231c5d136d44e40221c8

    SHA1

    17d24a1497cc8af29dc54d0a015cbb405eebcd0f

    SHA256

    70301694d70f5a5e1d9e9bdcff1b5abdee37a0e389ae72ffe2821c41938b01f9

    SHA512

    5006a60a32c6b12824585d4188034acf339570eb3a3b8c0392f1a742214931c8dc947a82b5dc9a73f2e94825bad5f20a312f683f8259ffa3b23f9b8067dcd6c7

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

    Filesize

    692KB

    MD5

    585a121b7e7f38d2d42b9e1ba5fb8369

    SHA1

    13d392436388a52ce3d4d2c54fe2bf620d7a6910

    SHA256

    1f3f731ad751c8e7002e7b77600f0ec96626a87315301240b4fd2f4a7bf938ea

    SHA512

    6e7d6df3f67c2b07bf0f458296442aedebbde2f7225b48fbc21bb1a4a59fc0ca7ca95cd9e9b66eec9686c9a78f3a69bb019b2725e5eed360063aaba1a0d91b49

  • C:\Users\Admin\AppData\Local\Temp\RVN.exe

    Filesize

    377KB

    MD5

    80ade1893dec9cab7f2e63538a464fcc

    SHA1

    c06614da33a65eddb506db00a124a3fc3f5be02e

    SHA256

    57a920389c044e3f5cf93dabff67070b4511e79779b6f874e08f92d8b0d7afbd

    SHA512

    fffd4f3fccb5301b3c7a5b3bd92747f31549fbd9d0803fe5d502d1bb0ef979140988718c2ee1406ed3e755790d275185e120a56cbcb5ed2eadf62b5cdbfc4cc4

  • memory/424-36-0x00000000001C0000-0x000000000035F000-memory.dmp

    Filesize

    1.6MB

  • memory/1640-22-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/1640-21-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/1640-20-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/1640-23-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/1640-25-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/4300-11-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/4300-12-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/4300-16-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/4300-9-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/5224-31-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/5224-34-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB

  • memory/5224-35-0x0000000010000000-0x00000000101B6000-memory.dmp

    Filesize

    1.7MB