Analysis

  • geolocation tags

    nanew-jerseynorth-americaunited-statesususa
  • max time kernel
    76s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    06/07/2026, 21:33

General

  • Target
    Browser/firefox.exe
  • Size 1.7MB
  • Sample260706-1eptmshs4r
  • SHA256 241366fae863e43e7a046b66c820c12771f030b6b4590cf5fb2646a4f44de074
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Checks system information in the registry 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 22 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 10 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
    "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
      C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
      2⤵
      • Checks whether UAC is enabled
      • Checks system information in the registry
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3644
      • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
        "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -parentBuildID 20260628123000 -prefsHandle 2588:26449 -prefMapHandle 2592:276393 -ipcHandle 2636 -initialChannelId {dc9d4ef3-0137-4050-be5c-c95a4afb0c9b} -parentPid 3644 -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 1 gpu
        3⤵
          PID:4940
        • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
          "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -isForBrowser -prefsHandle 2292:27031 -prefMapHandle 2316:276393 -jsInitHandle 2056:242716 -parentBuildID 20260628123000 -ipcHandle 2424 -initialChannelId {d22cf800-b3da-4a3e-a8bb-f6162bba0ed6} -parentPid 3644 -win32kLockedDown -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 2 tab
          3⤵
          • Checks processor information in registry
          PID:1800
        • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
          "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -parentBuildID 20260628123000 -prefsHandle 2952:27716 -prefMapHandle 2956:276393 -ipcHandle 1956 -initialChannelId {7c05ee6d-bd64-42db-8626-8f87859b75fc} -parentPid 3644 -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 3 rdd
          3⤵
            PID:2588
          • C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Tor\tor.exe
            C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Tor\tor.exe -f C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Tor\torrc DataDirectory C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Tor ClientOnionAuthDir C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Tor\onion-auth --defaults-torrc C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Tor\torrc-defaults GeoIPFile C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Tor\geoip GeoIPv6File C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Tor\geoip6 +__ControlPort 127.0.0.1:9151 HashedControlPassword 16:cbca099a854f7e1e606c9f8d224e5570d999cc499228c34af374cadb83 +__SocksPort "127.0.0.1:9150 ExtendedErrors IPv6Traffic PreferIPv6 KeepAliveIsolateSOCKSAuth" __OwningControllerProcess 3644 DisableNetwork 1
            3⤵
            • Executes dropped EXE
            PID:2540
          • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
            "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -isForBrowser -prefsHandle 3428:27778 -prefMapHandle 3432:276393 -jsInitHandle 3436:242716 -parentBuildID 20260628123000 -ipcHandle 3444 -initialChannelId {ccd533f5-fedc-479c-a76b-2f8966c0f881} -parentPid 3644 -win32kLockedDown -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 4 tab
            3⤵
            • Checks processor information in registry
            PID:1704
          • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
            "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -isForBrowser -prefsHandle 3560:27854 -prefMapHandle 3460:276393 -jsInitHandle 3472:242716 -parentBuildID 20260628123000 -ipcHandle 3788 -initialChannelId {3d86ac2e-39ff-45aa-bfaf-51e44b5f36b4} -parentPid 3644 -win32kLockedDown -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 5 tab
            3⤵
            • Checks processor information in registry
            PID:4556
          • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
            "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -parentBuildID 20260628123000 -sandboxingKind 0 -prefsHandle 3152:29643 -prefMapHandle 3084:276393 -ipcHandle 4064 -initialChannelId {533db298-d6fb-405d-a43d-f003ff955512} -parentPid 3644 -win32kLockedDown -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 6 utility
            3⤵
            • Checks processor information in registry
            PID:3216
          • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
            "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -isForBrowser -prefsHandle 4132:28693 -prefMapHandle 4204:276393 -jsInitHandle 4208:242716 -parentBuildID 20260628123000 -ipcHandle 4216 -initialChannelId {12ca9b1c-e8d1-4a2b-9a61-b2ae93a4216c} -parentPid 3644 -win32kLockedDown -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 7 tab
            3⤵
            • Checks processor information in registry
            PID:3004
          • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
            "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -isForBrowser -prefsHandle 3764:28963 -prefMapHandle 2160:276393 -jsInitHandle 1952:242716 -parentBuildID 20260628123000 -ipcHandle 4524 -initialChannelId {9ab760e8-da81-49b6-bc69-a12dabfac9a7} -parentPid 3644 -win32kLockedDown -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 8 tab
            3⤵
            • Checks processor information in registry
            PID:1720
          • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
            "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -isForBrowser -prefsHandle 3704:28963 -prefMapHandle 2160:276393 -jsInitHandle 1952:242716 -parentBuildID 20260628123000 -ipcHandle 3148 -initialChannelId {4f19dfbd-e81a-47aa-8fc5-01f3e17ffc22} -parentPid 3644 -win32kLockedDown -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 9 tab
            3⤵
            • Checks processor information in registry
            PID:1904
          • C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe
            "C:\Users\Admin\AppData\Local\Temp\Browser\firefox.exe" -contentproc -isForBrowser -prefsHandle 4692:28963 -prefMapHandle 4696:276393 -jsInitHandle 4700:242716 -parentBuildID 20260628123000 -ipcHandle 4708 -initialChannelId {b8442307-c69b-4ed7-bf86-989b70114682} -parentPid 3644 -win32kLockedDown -appDir "C:\Users\Admin\AppData\Local\Temp\Browser\browser" - 10 tab
            3⤵
            • Checks processor information in registry
            PID:4500

      Network

            MITRE ATT&CK Enterprise v16

            Replay Monitor

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            Downloads

            data.safe.bin

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\datareporting\glean\db\data.safe.bin
            • Size 82B
            • SHA256 0c6c1246ff1fcbf1ac16dfe53be24ee7891de62a4bfedeeb632faa7caee262a8
            • MD5 SHA1 SHA512 TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\datareporting\glean\db\data.safe.tmp
            • Size 82B
            • SHA256 39447608973367d2f9deccd6b21b3bf4bda73b7405d0d153845b180a5ceae6ef
            • MD5 SHA1 SHA512 TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\datareporting\glean\db\data.safe.tmp
            • Size 82B
            • SHA256 84e58efe7002b3979bd085be539f0b77c4e4088cf36871d2064b955cf8e49c41
            • MD5 SHA1 SHA512 TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\datareporting\glean\db\data.safe.tmp
            • Size 82B
            • SHA256 9934d47707fb909b6149196f695ca44da83dca6280ef5cf374ce80d3267f4e75
            • MD5 SHA1 SHA512 TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\datareporting\glean\db\data.safe.tmp
            • Size 82B
            • SHA256 ab3444dda5066eb5063be04eb18906e6f558b01ec92f80aab38e2a9ead5b7a84
            • MD5 SHA1 SHA512 TLSH

            data.safe.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\datareporting\glean\db\data.safe.tmp
            • Size 82B
            • SHA256 b9382d692c3cab8780b86342e5fff6ce78d5b62969767fb57643f4f3b700fc49
            • MD5 SHA1 SHA512 TLSH

            extensions.json

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\extensions.json
            • Size 17KB
            • SHA256 c6af581175e3a048879637c6daa859b9000bc588ae18e3d9fb86973260b73fc1
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs-1.js

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\prefs-1.js
            • Size 5KB
            • SHA256 c2ff569bf6472521ab5552e7ff3321b9a7932046cfbbff9f6828b933506370c0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs-1.js

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\prefs-1.js
            • Size 4KB
            • SHA256 844d1b37da7f47246400002d3e3faeeb88769fab8e16b2da61d1e13154ab71f0
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs.js

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\prefs.js
            • Size 795B
            • SHA256 8ed1624c4c8df91a59cf03a9efd7661a076bfd6b0d65b2aea78ee9fe53438355
            • MD5 SHA1 SHA512 TLSH

            prefs.js

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\prefs.js
            • Size 5KB
            • SHA256 dbd01fef43a7b995a93220967996c5012fbc3392696538aa3fbe9510e3871e66
            • MD5 SHA1 SHA512 SSDEEP TLSH

            prefs.js

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\prefs.js
            • Size 4KB
            • SHA256 137edb669b65663194e06829c4a80632319fab55cceb84d554b0ecb0f1163c5c
            • MD5 SHA1 SHA512 SSDEEP TLSH

            3870112724rsegmnoittet-es.sqlite

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Data\Browser\profile.default\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
            • Size 200KB
            • SHA256 a53caa04c610b728578d542532a26ab2a409d33c5ab6a6365e81106b16b263ee
            • MD5 SHA1 SHA512 SSDEEP TLSH

            tor.exe

            • Path C:\Users\Admin\AppData\Local\Temp\Browser\TorBrowser\Tor\tor.exe
            • Size 9.7MB
            • SHA256 ec7708e0b43e0e00b1533d11ed3ca244e6f11cb2a7b62d319ad73a7b13123033
            • MD5 SHA1 SHA512 SSDEEP TLSH

            memory/1704-679-0x0000019A40B30000-0x0000019A40B9F000-memory.dmp

            memory/1720-689-0x0000024215390000-0x00000242153FF000-memory.dmp

            memory/1800-73-0x00007FFBC5500000-0x00007FFBC5501000-memory.dmp

            memory/1800-626-0x000001EB49970000-0x000001EB499DF000-memory.dmp

            memory/1800-72-0x00007FFBC5890000-0x00007FFBC5891000-memory.dmp

            memory/1800-71-0x00007FFBC5880000-0x00007FFBC5881000-memory.dmp

            memory/1904-690-0x0000028646200000-0x000002864626F000-memory.dmp

            memory/3004-688-0x000001C899C50000-0x000001C899CBF000-memory.dmp

            memory/3216-687-0x000002350A370000-0x000002350A3DF000-memory.dmp

            memory/3644-647-0x000001F224DB0000-0x000001F224DC0000-memory.dmp

            memory/3644-77-0x000001F221DA0000-0x000001F221DB0000-memory.dmp

            memory/4500-691-0x0000027842850000-0x00000278428BF000-memory.dmp

            memory/4556-680-0x0000022E3A750000-0x0000022E3A7BF000-memory.dmp