Resubmissions

12/08/2026, 02:55

260812-dera5sxdqe7

12/08/2026, 01:33

260812-byvfsswfjc7

10/08/2026, 07:45

260810-jlw3vsdm3x5

Analysis

  • user interaction
    yes
  • max time kernel
    170s
  • max time network
    175s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-ja
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-jalocale:ja-jpos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/08/2026, 07:45

General

  • Target
    nvml.dll
  • Size 9KB
  • Sample260810-jlw3vsdm3x
  • SHA256 7327b3c0a11b6eadc3f285f362c11b230beebc52985de041e07e27322e10db15
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 23 IoCs

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

  • Modifies registry class 3 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 38 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.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\nvml.dll,#1
    1⤵
      PID:2716
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:1268
      • C:\Windows\system32\OpenWith.exe
        C:\Windows\system32\OpenWith.exe -Embedding
        1⤵
        • Modifies registry class
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2636
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "C:\Users\Admin\AppData\Local\Temp\nvml.dll"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1460
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url C:\Users\Admin\AppData\Local\Temp\nvml.dll
            3⤵
            • Checks processor information in registry
            • Modifies registry class
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3972
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1952 -prefsLen 27019 -prefMapHandle 1956 -prefMapSize 270249 -ipcHandle 2040 -initialChannelId {ebe77de4-18c3-4feb-9392-3375335f3c7c} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
              4⤵
                PID:3436
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2440 -prefsLen 27055 -prefMapHandle 2444 -prefMapSize 270249 -ipcHandle 2452 -initialChannelId {8ee96254-1f42-4359-9bbc-8aafa22e0289} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
                4⤵
                • Checks processor information in registry
                PID:1612
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3836 -prefsLen 27196 -prefMapHandle 3840 -prefMapSize 270249 -jsInitHandle 3844 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3852 -initialChannelId {a65867ab-1a3a-47dd-bd96-1ce967c17c26} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
                4⤵
                • Checks processor information in registry
                PID:4668
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 4000 -prefsLen 27196 -prefMapHandle 4004 -prefMapSize 270249 -ipcHandle 4112 -initialChannelId {076e1e2f-7854-42f9-98ec-f128bbfca739} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
                4⤵
                  PID:4956
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4448 -prefsLen 34695 -prefMapHandle 4452 -prefMapSize 270249 -jsInitHandle 4456 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4464 -initialChannelId {d795b42f-93b2-472c-ace4-00e726c3fcc7} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                  4⤵
                  • Checks processor information in registry
                  PID:3704
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 5280 -prefsLen 34851 -prefMapHandle 5284 -prefMapSize 270249 -ipcHandle 5256 -initialChannelId {f0039212-cee7-4d88-807a-c1373363c757} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                  4⤵
                  • Checks processor information in registry
                  PID:6208
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3024 -prefsLen 32809 -prefMapHandle 5176 -prefMapSize 270249 -jsInitHandle 5180 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5708 -initialChannelId {d40d887e-38d8-4296-be94-1bb7b7c74c4d} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                  4⤵
                  • Checks processor information in registry
                  PID:6572
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5912 -prefsLen 32809 -prefMapHandle 5916 -prefMapSize 270249 -jsInitHandle 5920 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5928 -initialChannelId {5585f680-a2b2-4c4e-9de7-df9723796455} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                  4⤵
                  • Checks processor information in registry
                  PID:6588
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5952 -prefsLen 32809 -prefMapHandle 5956 -prefMapSize 270249 -jsInitHandle 5960 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5968 -initialChannelId {25e1c114-dc1a-4489-a13d-d8563913653c} -parentPid 3972 -crashReporter "\\.\pipe\gecko-crash-server-pipe.3972" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                  4⤵
                  • Checks processor information in registry
                  PID:6596
          • C:\Windows\system32\OpenWith.exe
            C:\Windows\system32\OpenWith.exe -Embedding
            1⤵
            • Modifies registry class
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:3540
            • C:\Windows\system32\NOTEPAD.EXE
              "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\nvml.dll
              2⤵
              • Opens file in notepad (likely ransom note)
              PID:268
          • C:\Windows\system32\cmd.exe
            "C:\Windows\system32\cmd.exe"
            1⤵
              PID:4792

            Network

                  MITRE ATT&CK Enterprise v16

                  Replay Monitor

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                  Downloads

                  data.safe.tmp

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\datareporting\glean\db\data.safe.tmp
                  • Size 7KB
                  • SHA256 30779102aea37ad93fcd3237bc6f95e9bb69ff3f0412e25d4f3334c007c7b171
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  events

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\datareporting\glean\events\events
                  • Size 1KB
                  • SHA256 bd5377f194e64750f4e8b0ea7918d998c719c272222cec69c27d19cf7df0c93c
                  • MD5 SHA1 SHA512 TLSH

                  75a71437-6d48-43a2-bacc-52d32c03aaa1

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\datareporting\glean\pending_pings\75a71437-6d48-43a2-bacc-52d32c03aaa1
                  • Size 886B
                  • SHA256 e1645f84ba857872eec6c323882384644f8ae212b428bf07cb1203516ced5097
                  • MD5 SHA1 SHA512 TLSH

                  b0d163a5-d7f7-41a1-9b36-db2a3497adb4

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\datareporting\glean\pending_pings\b0d163a5-d7f7-41a1-9b36-db2a3497adb4
                  • Size 235B
                  • SHA256 0b47dc427093cc18c4e3b5e1235002a0488ebcd731438a42990a8493ae598cf2
                  • MD5 SHA1 SHA512 TLSH

                  bbd82d68-a88e-4cd6-b05b-c2cb1378a891

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\datareporting\glean\pending_pings\bbd82d68-a88e-4cd6-b05b-c2cb1378a891
                  • Size 2KB
                  • SHA256 358613fdefcc9b5fa12318e48729f6d6af07a91318555c6e2d332cb0789aadb5
                  • MD5 SHA1 SHA512 TLSH

                  c7abfbd5-cc5c-4f78-a53e-c64801781e12

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\datareporting\glean\pending_pings\c7abfbd5-cc5c-4f78-a53e-c64801781e12
                  • Size 16KB
                  • SHA256 a9c5776f8fced46957bf1f354bdb3f5d5a94cf71f5278b40de59c1c49f88af9b
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  dc9ffcbb-db00-46da-8804-d0f778efd93c

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\datareporting\glean\pending_pings\dc9ffcbb-db00-46da-8804-d0f778efd93c
                  • Size 235B
                  • SHA256 e11d4abca0283cf1195102b1432961344aefa6b42b54b482a423825861cfa332
                  • MD5 SHA1 SHA512 TLSH

                  f63971cc-3b6f-4bfc-adc6-9ab897205779

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\datareporting\glean\pending_pings\f63971cc-3b6f-4bfc-adc6-9ab897205779
                  • Size 883B
                  • SHA256 1c4f1571d7d5330bf86e662c259c9de6504104a77e02225ae1f7898e772cb8f8
                  • MD5 SHA1 SHA512 TLSH

                  prefs-1.js

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\prefs-1.js
                  • Size 6KB
                  • SHA256 cc7fb847a17c25a92106ae577380cf1e633cf432497cfbd92d15fe5ccdda986f
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  prefs.js

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\prefs.js
                  • Size 6KB
                  • SHA256 5b1160506aa72180e9d870488ad630f849cb50c371efc42270b6675c8b75f575
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  prefs.js

                  • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\jh02jw2g.default-release\prefs.js
                  • Size 6KB
                  • SHA256 cb9b28ffa2f348a3a7d094a061224ea6695a39437bc4306b53b5f61a69725e87
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  nvml.dll

                  • Path C:\Users\Admin\Downloads\nvml.dll
                  • Size 9KB
                  • SHA256 7327b3c0a11b6eadc3f285f362c11b230beebc52985de041e07e27322e10db15
                  • MD5 SHA1 SHA512 SSDEEP TLSH

                  memory/2716-0-0x00007FFAB9980000-0x00007FFAB9BE3000-memory.dmp

                  memory/2716-1-0x00007FFAB11D0000-0x00007FFAB11D7000-memory.dmp