Analysis

  • max time kernel
    149s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-02-2025 06:53

General

  • Target

    svhest.exe

  • Size

    491KB

  • MD5

    a40e4a8aaf476b3d9997d05489f87c2a

  • SHA1

    dc7f49a217cda95d29d46c0d00afedea7404d7c8

  • SHA256

    df60b74ff96bb320d1cf8d1a511c56bae2ca8d94ebb6566eca7b51c3521c0171

  • SHA512

    bc31c5fd1c8d5547146ff7d123d9815b92565e0909d32dac71e790cb795c740566d082a166041c62b0b3fa8a21be9f850a894b9a4919563fae9171aea4fde4ca

  • SSDEEP

    6144:GpoMkequERu8qQ1fjYMMW9eKZH+IdISTUL24qL9cPKcPzR2RP6lZv:oDR+u8pfjYMMWNvdhUSByFPztv

Malware Config

Signatures

  • Detect PurpleFox Rootkit 11 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 11 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
  • Downloads MZ/PE file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • UPX packed file 13 IoCs

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

  • Drops file in Program Files directory 2 IoCs
  • 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 3 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 5 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\svhest.exe
    "C:\Users\Admin\AppData\Local\Temp\svhest.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2288
    • 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\svhest.exe > nul
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2596
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 2 127.0.0.1
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:3328
  • C:\Program Files\Jbrja.exe
    "C:\\Program Files\\Jbrja.exe" -auto
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:396
    • C:\Program Files\Jbrja.exe
      "C:\Program Files\Jbrja.exe" -acsi
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      PID:2516
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI1IiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODIxNjkiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1MzE4NTEwMTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0Njk5NjAxNjMyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:3300
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{F504F686-F79D-466B-9DC0-5AF40B58E599}\MicrosoftEdge_X64_133.0.3065.69.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{F504F686-F79D-466B-9DC0-5AF40B58E599}\MicrosoftEdge_X64_133.0.3065.69.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
    1⤵
      PID:2532

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\Jbrja.exe

      Filesize

      491KB

      MD5

      a40e4a8aaf476b3d9997d05489f87c2a

      SHA1

      dc7f49a217cda95d29d46c0d00afedea7404d7c8

      SHA256

      df60b74ff96bb320d1cf8d1a511c56bae2ca8d94ebb6566eca7b51c3521c0171

      SHA512

      bc31c5fd1c8d5547146ff7d123d9815b92565e0909d32dac71e790cb795c740566d082a166041c62b0b3fa8a21be9f850a894b9a4919563fae9171aea4fde4ca

    • memory/396-14-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/396-25-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/396-13-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/396-16-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/396-11-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/2288-0-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/2288-2-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/2288-5-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/2288-19-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/2288-3-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/2516-27-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/2516-26-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB

    • memory/2516-32-0x0000000010000000-0x00000000101D0000-memory.dmp

      Filesize

      1.8MB