Analysis

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

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    08/08/2026, 18:17

General

  • Target
    Drv_ceo_12.8.1_x64.exe
  • Size 14.6MB
  • Sample260808-wxaefsbp41
  • SHA256 0d4755125431b2df6a5232950b6c475bb6ae459a35503d64a6bc2c8075f5e2e5
  • 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
  • Drops file in Windows directory 4 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.

  • Modifies data under HKEY_USERS 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • 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\Drv_ceo_12.8.1_x64.exe
    "C:\Users\Admin\AppData\Local\Temp\Drv_ceo_12.8.1_x64.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5716
    • 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:2760
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Discovers running processes
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3536
      • C:\Windows\SysWOW64\findstr.exe
        findstr /I /C:"360tray.exe" /C:"HipsTray.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5144
    • 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:4336
      • 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:4532
        • 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:2588
    • 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:4632
    • 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:5512
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:5504
  • C:\Windows\System32\UserAccountBroker.exe
    C:\Windows\System32\UserAccountBroker.exe
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    PID:5096
  • C:\Windows\System32\edpnotify.exe
    C:\Windows\System32\edpnotify.exe
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    PID:1760
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:1040

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsk8E9C.tmp\System.dll
          • Size 11KB
          • SHA256 a0cac4cf4852895619bc7743ebeb89f9e4927ccdb9e66b1bcd92a4136d0f9c77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          nsExec.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nsk8E9C.tmp\nsExec.dll
          • Size 6KB
          • SHA256 b22c8f676dec58be8d25fbad1a37835ffc4029f29aaf79f4dc0337ca73a38782
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ap.asin

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2c34\ap.asin
          • Size 260B
          • SHA256 156fb419996462ba4024e6c60fa36c4e240b3d6bf68a31a99cc636083ee17635
          • 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_2d004296fcc8

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2c34\ev2c34.exe.nhpart_2d004296fcc8
          • Size 1.6MB
          • SHA256 d80c12abd623a0614e09163687fa73cb327d756749c1d18563cd1e1dd7d7b31d
          • 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 45KB
          • SHA256 700f323400cebc41c77236144b8ed387acb93bfbef64a40af4faf12df8ce2cff
          • MD5 SHA1 SHA512 SSDEEP TLSH

          ev2f79.exe

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2f79\ev2f79.exe
          • Size 1.6MB
          • SHA256 58b5185a7c1c4b22846cc19a2b67ffe62f1dc3e72c0c6d9f1026579a44ad6e97
          • MD5 SHA1 SHA512 SSDEEP TLSH

          otrm.oi

          • Path C:\Users\Admin\AppData\Roaming\comain_ev2f79\otrm.oi
          • Size 187KB
          • SHA256 cad3a6119836f449186774952891d78502213c894904eb3b2892fd3d0545a191
          • MD5 SHA1 SHA512 SSDEEP TLSH

          __PSScriptPolicyTest_2h0lfwks.p21.ps1

          • Path C:\Windows\SystemTemp\__PSScriptPolicyTest_2h0lfwks.p21.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          memory/1760-300-0x0000000180000000-0x000000018008E000-memory.dmp

          memory/2588-21-0x0000000070960000-0x00000000709AC000-memory.dmp

          memory/2588-13-0x0000000005E40000-0x0000000005EA6000-memory.dmp

          memory/2588-25-0x00000000075F0000-0x0000000007693000-memory.dmp

          memory/2588-27-0x0000000007730000-0x000000000774A000-memory.dmp

          memory/2588-26-0x0000000007D70000-0x00000000083EC000-memory.dmp

          memory/2588-28-0x00000000077A0000-0x00000000077AA000-memory.dmp

          memory/2588-29-0x00000000079A0000-0x0000000007A36000-memory.dmp

          memory/2588-31-0x0000000073FC0000-0x000000007477C000-memory.dmp

          memory/2588-20-0x0000000007580000-0x00000000075B6000-memory.dmp

          memory/2588-19-0x0000000006470000-0x00000000064BC000-memory.dmp

          memory/2588-7-0x0000000073FD2000-0x0000000073FD3000-memory.dmp

          memory/2588-8-0x0000000004EC0000-0x0000000004EF6000-memory.dmp

          memory/2588-24-0x00000000069B0000-0x00000000069D0000-memory.dmp

          memory/2588-9-0x0000000005650000-0x0000000005C9A000-memory.dmp

          memory/2588-10-0x0000000073FC0000-0x000000007477C000-memory.dmp

          memory/2588-18-0x00000000063A0000-0x00000000063BE000-memory.dmp

          memory/2588-17-0x0000000005F20000-0x000000000627B000-memory.dmp

          memory/2588-11-0x00000000055E0000-0x0000000005602000-memory.dmp

          memory/2588-14-0x0000000073FC0000-0x000000007477C000-memory.dmp

          memory/2588-12-0x0000000005DD0000-0x0000000005E36000-memory.dmp

          memory/4632-72-0x0000000010000000-0x0000000010033000-memory.dmp

          memory/4632-77-0x0000000010000000-0x0000000010033000-memory.dmp

          memory/4632-74-0x0000000010000000-0x0000000010033000-memory.dmp

          memory/4632-73-0x0000000010000000-0x0000000010033000-memory.dmp

          memory/4632-65-0x0000000010000000-0x0000000010033000-memory.dmp

          memory/4632-71-0x0000000010000000-0x0000000010033000-memory.dmp

          memory/5096-316-0x00000272B2E80000-0x00000272B2F50000-memory.dmp

          memory/5096-286-0x0000000180000000-0x000000018008A000-memory.dmp

          memory/5096-320-0x00000272B2E80000-0x00000272B2F50000-memory.dmp

          memory/5096-315-0x00000272B2E80000-0x00000272B2F50000-memory.dmp

          memory/5096-318-0x00000272B2E80000-0x00000272B2F50000-memory.dmp

          memory/5096-321-0x00000272B2E80000-0x00000272B2F50000-memory.dmp

          memory/5096-317-0x00000272B2E80000-0x00000272B2F50000-memory.dmp

          memory/5096-319-0x00000272B2E80000-0x00000272B2F50000-memory.dmp

          memory/5504-84-0x0000018165F90000-0x0000018165FAE000-memory.dmp

          memory/5504-87-0x0000018166090000-0x00000181660AE000-memory.dmp

          memory/5504-86-0x000001814D380000-0x000001814D38A000-memory.dmp

          memory/5504-85-0x0000018165FB0000-0x0000018166062000-memory.dmp

          memory/5504-78-0x000001814D0A0000-0x000001814D0AC000-memory.dmp

          memory/5504-81-0x000001814D1B0000-0x000001814D1D2000-memory.dmp

          memory/5512-314-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5512-122-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5512-128-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5512-129-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5512-131-0x0000000010000000-0x0000000010032000-memory.dmp

          memory/5512-130-0x0000000010000000-0x0000000010032000-memory.dmp