Analysis

  • max time kernel
    150s
  • max time network
    130s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/10/2026, 19:55

General

  • Target
    489109095909eb9b3d60db1a01178080073b068e535735a026d351d446bef1d2.exe
  • Size 17.9MB
  • Sample261009-ynh2cabv2k
  • SHA256 489109095909eb9b3d60db1a01178080073b068e535735a026d351d446bef1d2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Badlisted process makes network request 2 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 2 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Registers new Windows logon scripts automatically executed at logon. 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Looks up external IP address via web service 1 TTPs 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Delays execution with timeout.exe 2 IoCs
  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Modifies registry class 4 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\489109095909eb9b3d60db1a01178080073b068e535735a026d351d446bef1d2.exe
    "C:\Users\Admin\AppData\Local\Temp\489109095909eb9b3d60db1a01178080073b068e535735a026d351d446bef1d2.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3416
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c timeout /t 600 /nobreak >nul 2>&1 & taskkill /f /pid 3416 >nul 2>&1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\489109095909eb9b3d60db1a01178080073b068e535735a026d351d446bef1d2.exe"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3712
      • C:\Windows\system32\timeout.exe
        timeout /t 600 /nobreak
        3⤵
        • Delays execution with timeout.exe
        PID:2916
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c timeout /t 900 /nobreak >nul 2>&1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\ss_dbg.txt" "C:\Users\Admin\AppData\Local\Temp\ss_release_debug.log" "C:\Users\Public\ss_release_debug.log"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:3532
      • C:\Windows\system32\timeout.exe
        timeout /t 900 /nobreak
        3⤵
        • Delays execution with timeout.exe
        PID:4592
    • C:\Windows\System32\rundll32.exe
      rundll32.exe
      2⤵
      • Badlisted process makes network request
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2904
      • C:\Windows\system32\systeminfo.exe
        C:\Windows\system32\systeminfo.exe
        3⤵
        • Gathers system information
        PID:5812
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --user-data-dir="C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --no-first-run --disable-gpu --disable-extensions --disable-background-networking --disable-sync --no-startup-window --disable-background-mode --window-position=-32000,-32000 --window-size=1,1 --noerrdialogs --noerrdialogs --headless=new about:blank
        3⤵
          PID:2140
      • C:\Windows\System32\rundll32.exe
        rundll32.exe
        2⤵
        • Drops desktop.ini file(s)
        • NTFS ADS
        PID:2768
        • C:\ProgramData\ARM\Win32Container.exe
          "C:\ProgramData\ARM\Win32Container.exe"
          3⤵
          • Modifies WinLogon for persistence
          • Executes dropped EXE
          • Registers new Windows logon scripts automatically executed at logon.
          • Adds Run key to start application
          • Modifies registry class
          • NTFS ADS
          PID:4296
    • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
      "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
      1⤵
        PID:1540
      • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
        "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
        1⤵
          PID:2832
        • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
          "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
          1⤵
            PID:5384
          • C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
            "C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
            1⤵
              PID:4468
            • C:\ProgramData\ARM\Win32Container.exe
              "C:\ProgramData\ARM\Win32Container.exe"
              1⤵
              • Executes dropped EXE
              PID:2456

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  ARMHelper.exe

                  • Path C:\ProgramData\ARM\ARMHelper.exe
                  • Size 2.7MB
                  • SHA256 323fee0ea61ed97c6cab4364972362fa68c7aedefa861f931ec89692b14c5018
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  ss_dbg.txt

                  • Path C:\Users\Admin\AppData\Local\Temp\ss_dbg.txt
                  • Size 401B
                  • SHA256 ebcf5b3b4bf4b450aeb7379c051cf5260630c9f5920a564ce7358d68145ae6ea
                  • MD5 SHA1 SHA512 TLSH

                  ss_release_debug.log

                  • Path C:\Users\Admin\AppData\Local\Temp\ss_release_debug.log
                  • Size 455B
                  • SHA256 e8c4fc9cd27976e6c32f36036937efb79543db62172b3808820632f1da19acde
                  • MD5 SHA1 SHA512 TLSH

                  ss_release_debug.log

                  • Path C:\Users\Admin\AppData\Local\Temp\ss_release_debug.log
                  • Size 46B
                  • SHA256 dce1b9b28523bc11777010830dd4d8767cd5451d07cfb4cc8255f2156c0ea761
                  • MD5 SHA1 SHA512

                  ss_release_debug.log

                  • Path C:\Users\Admin\AppData\Local\Temp\ss_release_debug.log
                  • Size 85B
                  • SHA256 0e551400c6996c8f4871fb71a36a10693333a1ec77d7258efd8d2ad43fedbd77
                  • MD5 SHA1 SHA512 TLSH

                  ss_wdc_dbg.txt

                  • Path C:\Users\Admin\AppData\Local\Temp\ss_wdc_dbg.txt
                  • Size 415B
                  • SHA256 8afddaf0b5092a3bb2af333f09e31eec92fb9a8d07f6d5bee54c415300adc2c5
                  • MD5 SHA1 SHA512 TLSH

                  yami_405551

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_405551
                  • Size 160KB
                  • SHA256 9091ac11406f559b228639a023f638aa4461083cf4151878f781b85acde0e2ba
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  yami_427649

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_427649
                  • Size 40KB
                  • SHA256 06aeb2f9c1ee642348c091fb27541c143545354c273055ce30832e0f61aedf81
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  yami_608082

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_608082
                  • Size 256KB
                  • SHA256 b0c72944fc5bd02ac464a83ac972277e38d0dbc674f2a634c0d432bf882ef89a
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  yami_691461

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_691461
                  • Size 138KB
                  • SHA256 fbfae1033286b0ed007145fb651d1378062ed761ec7fe346639cb5c1c41f2674
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  yami_719005

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_719005
                  • Size 50KB
                  • SHA256 92deb9024ca49204bb9a97b2936ac1aaf6e20e437ed40db53a5409bf801c0a20
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  yami_743696

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_743696
                  • Size 24KB
                  • SHA256 4cc1a146d871eea502899024db7a2ff4ab46d4e787819a0fd75cc74aa7dd9926
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  yami_824201

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_824201
                  • Size 20KB
                  • SHA256 2ade7ad8f15eccb025798893f007bc3a04679504411bbad75e4d1f35cf47a65e
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  yami_883697

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_883697
                  • Size 224KB
                  • SHA256 faad576265b7aa771efac6fe497f858970e447816045a553ae37750eff157d39
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  yami_abe_key_2140.txt

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_abe_key_2140.txt
                  • Size 85B
                  • SHA256 24df5158294a666e78c42c3ccc3b844ae5a61299fbcf30d2f1e871d7a10c31d5
                  • MD5 SHA1 SHA512 TLSH

                  yami_pipe.txt

                  • Path C:\Users\Admin\AppData\Local\Temp\yami_pipe.txt
                  • Size 77B
                  • SHA256 84da590dac7720250fc40c63c42229b26cb31946987d9213e1402db5eb527e38
                  • MD5 SHA1 SHA512 TLSH

                  memory/1540-67-0x0000014D0C830000-0x0000014D0CA71000-memory.dmp

                  memory/2768-82-0x0000000180000000-0x00000001800B9000-memory.dmp

                  memory/2768-94-0x0000000140000000-0x00000001402B8000-memory.dmp

                  memory/2768-78-0x0000016E24660000-0x0000016E24661000-memory.dmp

                  memory/2768-137-0x0000000180000000-0x00000001800B9000-memory.dmp

                  memory/2832-70-0x0000019819190000-0x00000198193D1000-memory.dmp

                  memory/2904-41-0x0000023571B20000-0x0000023571D97000-memory.dmp

                  memory/2904-43-0x0000023571B20000-0x0000023571D97000-memory.dmp

                  memory/2904-9-0x000002356E850000-0x000002356E851000-memory.dmp

                  memory/2904-37-0x0000023571B20000-0x0000023571D97000-memory.dmp

                  memory/2904-28-0x0000023571B20000-0x0000023571D97000-memory.dmp

                  memory/2904-25-0x00000235703C0000-0x0000023570636000-memory.dmp

                  memory/2904-26-0x0000000180000000-0x00000001800B9000-memory.dmp

                  memory/2904-16-0x0000000180000000-0x00000001800B9000-memory.dmp

                  memory/2904-13-0x000002356E9A0000-0x000002356E9A1000-memory.dmp

                  memory/2904-1-0x0000000180000000-0x00000001800B9000-memory.dmp

                  memory/2904-248-0x0000000180000000-0x00000001800B9000-memory.dmp