Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/08/2026, 04:37

General

  • Target
    Jinshan_x64.exe
  • Size 13.2MB
  • Sample260819-e85lasdn9w
  • SHA256 459919673f8284b9888dcd2663187920cddb59cdc8fcdb95733dbb7f4676e35f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Discovers running processes 1 TTPs 1 IoCs

    Running process information can be used to identify security tools or plan follow-on actions.

  • Drops file in Program Files directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Executes a command shell one-liner 1 TTPs 3 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Jinshan_x64.exe
    "C:\Users\Admin\AppData\Local\Temp\Jinshan_x64.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C tasklist | findstr /I /C:"360tray.exe" /C:"HipsTray.exe"
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2452
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Discovers running processes
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3820
      • C:\Windows\SysWOW64\findstr.exe
        findstr /I /C:"360tray.exe" /C:"HipsTray.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4124
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C start "" /B cmd.exe /C "powershell Add-MpPreference -ExclusionPath C:\,D:\,F:\"
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5264
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /C "powershell Add-MpPreference -ExclusionPath C:\,D:\,F:\"
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2068
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          powershell Add-MpPreference -ExclusionPath C:\,D:\,F:\
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1432
    • C:\Users\Admin\AppData\Roaming\comain_ev2f79\ev2f79.exe
      "C:\Users\Admin\AppData\Roaming\comain_ev2f79\ev2f79.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:5876
    • C:\Users\Admin\AppData\Roaming\comain_ev2c34\ev2c34.exe
      "C:\Users\Admin\AppData\Roaming\comain_ev2c34\ev2c34.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      PID:5592
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:6100
  • C:\Windows\system32\rundll32.exe
    rundll32.exe
    1⤵
      PID:4496
    • C:\Windows\System32\UserAccountBroker.exe
      C:\Windows\System32\UserAccountBroker.exe
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      PID:4132
    • C:\Windows\System32\edpnotify.exe
      C:\Windows\System32\edpnotify.exe
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2216

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nse262E.tmp\System.dll
          • Size 11KB
          • SHA256 6fcea34c8666b06368379c6c402b5321202c11b00889401c743fb96c516c679e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          nsExec.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nse262E.tmp\nsExec.dll
          • Size 6KB
          • SHA256 114c6941a8b489416c84563e94fd266ea5cad2b518db45cd977f1f9761e00cb1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ap.asin

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2c34\ap.asin
          • Size 260B
          • SHA256 21fa1e97d1b35f2b4fffb4b077cce3b96e45f28b7a886478004294962f9c6761
          • MD5 SHA1 SHA512 TLSH

          bnymir.ou

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2c34\bnymir.ou
          • Size 532KB
          • SHA256 80ea61aa50e8fc47f3db2b37eca7350b21a3aa8f957c7cf9490bb7c3757379e1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          bteuns.pt

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2c34\bteuns.pt
          • Size 540KB
          • SHA256 29fbb5abc68c1c3f912500670f2ceb41b4ba3a9bf6af9c9a681aedfa7eb8e279
          • MD5 SHA1 SHA512 SSDEEP TLSH

          cmrsk.ce

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2c34\cmrsk.ce
          • Size 192KB
          • SHA256 2f592516e42bdf4b48eb92eced833db8c43681d00874257ee6e53395104d0142
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ev2c34.exe.nhpart_d188f23a30cf

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2c34\ev2c34.exe.nhpart_d188f23a30cf
          • Size 1.6MB
          • SHA256 6bb5549bab36ffbf99faf17b18ea9c105d51a49533bc0340e3be3e2c76db77d4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          fhkan.oi

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2c34\fhkan.oi
          • Size 183KB
          • SHA256 d50b4753fd94a5d80e3931356fb483ceee749e7421e61dd5aa698805a2d6ff3b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          dxyvnb.ti

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2f79\dxyvnb.ti
          • Size 2.7MB
          • SHA256 d70431fe84ca9362e194895817eb49419ab9b0585cfb64ebd3f934a391093c5e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ev2f79.exe

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2f79\ev2f79.exe
          • Size 1.6MB
          • SHA256 e0f1b40d6f0b4ecb8c0005a7bfc68e6fe8d7365255d6414d6a3c436eb2eb4512
          • MD5 SHA1 SHA512 SSDEEP TLSH

          otrm.oi

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2f79\otrm.oi
          • Size 184KB
          • SHA256 b4b3881fac7889e356623aa2babddd5dea9ecedcf9b2ede0792fd3326c3d83ca
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/1432-8-0x0000000002280000-0x00000000022B6000-memory.dmp

          memory/1432-14-0x0000000005570000-0x00000000055D6000-memory.dmp

          memory/1432-24-0x00000000060B0000-0x00000000060D0000-memory.dmp

          memory/1432-21-0x00000000709F0000-0x0000000070A3C000-memory.dmp

          memory/1432-25-0x0000000006CF0000-0x0000000006D93000-memory.dmp

          memory/1432-26-0x0000000007490000-0x0000000007B0C000-memory.dmp

          memory/1432-27-0x0000000006E50000-0x0000000006E6A000-memory.dmp

          memory/1432-28-0x0000000006EC0000-0x0000000006ECA000-memory.dmp

          memory/1432-29-0x00000000070C0000-0x0000000007156000-memory.dmp

          memory/1432-31-0x0000000074050000-0x000000007480C000-memory.dmp

          memory/1432-18-0x0000000005AE0000-0x0000000005AFE000-memory.dmp

          memory/1432-17-0x00000000055E0000-0x000000000593B000-memory.dmp

          memory/1432-19-0x0000000005B20000-0x0000000005B6C000-memory.dmp

          memory/1432-12-0x0000000004BF0000-0x0000000004C12000-memory.dmp

          memory/1432-9-0x0000000074050000-0x000000007480C000-memory.dmp

          memory/1432-10-0x0000000004D40000-0x000000000538A000-memory.dmp

          memory/1432-11-0x0000000074050000-0x000000007480C000-memory.dmp

          memory/1432-7-0x0000000074062000-0x0000000074063000-memory.dmp

          memory/1432-13-0x0000000005500000-0x0000000005566000-memory.dmp

          memory/1432-20-0x0000000006CA0000-0x0000000006CD6000-memory.dmp

          memory/2216-148-0x0000000180000000-0x000000018008E000-memory.dmp

          memory/4132-169-0x0000016C1A3A0000-0x0000016C1A470000-memory.dmp

          memory/4132-166-0x0000016C1A3A0000-0x0000016C1A470000-memory.dmp

          memory/4132-167-0x0000016C1A3A0000-0x0000016C1A470000-memory.dmp

          memory/4132-134-0x0000000180000000-0x000000018008A000-memory.dmp

          memory/4132-163-0x0000016C1A3A0000-0x0000016C1A470000-memory.dmp

          memory/4132-164-0x0000016C1A3A0000-0x0000016C1A470000-memory.dmp

          memory/4132-168-0x0000016C1A3A0000-0x0000016C1A470000-memory.dmp

          memory/4132-165-0x0000016C1A3A0000-0x0000016C1A470000-memory.dmp

          memory/5592-125-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5592-122-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5592-123-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5592-124-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5592-116-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5592-162-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5876-65-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5876-73-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5876-72-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5876-77-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5876-71-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5876-74-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/6100-79-0x000001091BE70000-0x000001091BE71000-memory.dmp

          memory/6100-78-0x0000010934EC0000-0x0000010935182000-memory.dmp

          memory/6100-81-0x000001091BEB0000-0x000001091BECE000-memory.dmp

          memory/6100-80-0x000001091C450000-0x000001091C4C6000-memory.dmp