Analysis

  • user interaction
    yes
  • max time kernel
    124s
  • max time network
    127s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-ja
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-jalocale:ja-jpos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 09:12

General

  • Target
    badata_x64.dll
  • Size 81KB
  • Sample260910-k57jdagd29
  • SHA256 74f3d90db9440e86d167b28863b506957a0cf96df6d0d852f48ea5d469af9a03
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: DonutLoader

    DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.

  • Family: Overlord

    Overlord is an open-source Windows RAT written in Golang.

  • Detects DonutLoader 1 IoCs
  • Detects Overlord RAT 1 IoCs
  • Badlisted process makes network request 7 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 TTPs 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 25 IoCs

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

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 39 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\badata_x64.dll,#1
    1⤵
    • Badlisted process makes network request
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4236
    • C:\Windows\system32\RuntimeBroker.exe
      "C:\Windows\system32\RuntimeBroker.exe"
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      PID:3792
  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_xhsCS7hL\rundll32.exe
    C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_xhsCS7hL\rundll32.exe
    1⤵
    • Executes dropped EXE
    PID:4804
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1692
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "C:\Users\Admin\AppData\Local\Temp\badata_x64.dll"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:6040
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url C:\Users\Admin\AppData\Local\Temp\badata_x64.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:4644
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 1948 -prefsLen 27098 -prefMapHandle 1952 -prefMapSize 270279 -ipcHandle 2036 -initialChannelId {a5c1257b-c855-4d47-9ee8-51e80bbd2be9} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
            4⤵
              PID:1688
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2432 -prefsLen 27134 -prefMapHandle 2436 -prefMapSize 270279 -ipcHandle 2444 -initialChannelId {9a572d9e-83a0-478e-828e-a7e5e2a20c08} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
              4⤵
              • Checks processor information in registry
              PID:1648
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3876 -prefsLen 27274 -prefMapHandle 3880 -prefMapSize 270279 -jsInitHandle 3884 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3892 -initialChannelId {c0e10f7d-53e6-4637-a259-3fb97a4255ed} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
              4⤵
              • Checks processor information in registry
              PID:4116
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3932 -prefsLen 27274 -prefMapHandle 3920 -prefMapSize 270279 -ipcHandle 4024 -initialChannelId {5afc65c5-acac-436f-9404-c812b8d3d09b} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
              4⤵
                PID:3692
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3148 -prefsLen 34773 -prefMapHandle 2688 -prefMapSize 270279 -jsInitHandle 2896 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3260 -initialChannelId {83eb7155-80a2-47e2-993d-8ab5d68dfd15} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                4⤵
                • Checks processor information in registry
                PID:5976
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 5336 -prefsLen 35010 -prefMapHandle 5340 -prefMapSize 270279 -ipcHandle 5352 -initialChannelId {e3e945b1-762c-4709-8aa6-82d16a6392c1} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                4⤵
                • Checks processor information in registry
                PID:6312
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5780 -prefsLen 32992 -prefMapHandle 5784 -prefMapSize 270279 -jsInitHandle 5788 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5804 -initialChannelId {aac70f6e-5fcb-4a31-bd02-5e41d1501e4d} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                4⤵
                • Checks processor information in registry
                PID:6612
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5812 -prefsLen 32992 -prefMapHandle 5816 -prefMapSize 270279 -jsInitHandle 5820 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5828 -initialChannelId {7312e803-a2c0-4aab-8bc7-0e6bd0d4fd29} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                4⤵
                • Checks processor information in registry
                PID:6620
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 6156 -prefsLen 32992 -prefMapHandle 6160 -prefMapSize 270279 -jsInitHandle 6164 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 6172 -initialChannelId {79dfd2f9-3570-4f30-ab02-c354bf48652a} -parentPid 4644 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4644" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                4⤵
                • Checks processor information in registry
                PID:6628
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          1⤵
            PID:4852

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                rundll32.exe

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_xhsCS7hL\rundll32.exe
                • Size 88KB
                • SHA256 4b84dc6750937eb47b19cde0d23debd4d2f2211300171b36d13ef5ad11dd60f9
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\datareporting\glean\db\data.safe.tmp
                • Size 7KB
                • SHA256 64e8ba5a0e0014c174bf2f6c5ad30bc6127173bfc70e3917dc29b6d6d98ac171
                • MD5 SHA1 SHA512 SSDEEP TLSH

                events

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\datareporting\glean\events\events
                • Size 1KB
                • SHA256 eace0a8087212a4433d537009e286e6336b3db88b9f87893edbaa5611f9cf368
                • MD5 SHA1 SHA512 TLSH

                05d20b9f-a504-4781-96a5-ffec516ebd55

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\datareporting\glean\pending_pings\05d20b9f-a504-4781-96a5-ffec516ebd55
                • Size 2KB
                • SHA256 54ed5209803a0d7ae7aacb1c9b3e7795b76d94338befd483024e33c4c06df1ec
                • MD5 SHA1 SHA512 TLSH

                330ffa8e-9898-44aa-a1be-2461e683b1ed

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\datareporting\glean\pending_pings\330ffa8e-9898-44aa-a1be-2461e683b1ed
                • Size 235B
                • SHA256 ef6c0747882612bf9fd857910e613b77d0a89e7ebb1459c9aac88fdf18df5cff
                • MD5 SHA1 SHA512 TLSH

                b7c4bd1b-b2d2-4cd2-a980-3c4569b98d39

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\datareporting\glean\pending_pings\b7c4bd1b-b2d2-4cd2-a980-3c4569b98d39
                • Size 235B
                • SHA256 c7333226a667ca622835e2dd42d47e917bb96ec12b438de41702c23125c5b729
                • MD5 SHA1 SHA512 TLSH

                c682540c-9aea-4ba4-8b83-bc36c8001b08

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\datareporting\glean\pending_pings\c682540c-9aea-4ba4-8b83-bc36c8001b08
                • Size 886B
                • SHA256 56dd7014ee4c8d8689b7c13449bd58a839b3242e6ecc45c6fd03328c34531004
                • MD5 SHA1 SHA512 TLSH

                cda21b0f-f46c-4938-b466-4d52533a6733

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\datareporting\glean\pending_pings\cda21b0f-f46c-4938-b466-4d52533a6733
                • Size 15KB
                • SHA256 5ccffd46b4108606b945e908834d9d0c15359c58d95448f5898574e1a7ae2ec9
                • MD5 SHA1 SHA512 SSDEEP TLSH

                d3831136-b136-4240-80e9-a4359a7620f5

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\datareporting\glean\pending_pings\d3831136-b136-4240-80e9-a4359a7620f5
                • Size 883B
                • SHA256 d2d3d79b9928d011079bcabf81d6c096f16b717417c484f21efce8f3700bb9b1
                • MD5 SHA1 SHA512 TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\prefs.js
                • Size 6KB
                • SHA256 b663a350b6c58191175e8b152bcffc63914ea9ff3833acaba857f7814af4d443
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\prefs.js
                • Size 6KB
                • SHA256 97a41df99a9e0da872022918bcff43581f8a069a66929b20b0279ff409cdaa45
                • MD5 SHA1 SHA512 SSDEEP TLSH

                sessionCheckpoints.json.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\fu4ot18b.default-release\sessionCheckpoints.json.tmp
                • Size 288B
                • SHA256 2fca1f29b73dd5b4159fa1eb16e69276482f5224ba7d2219a547039129a51f0e
                • MD5 SHA1 SHA512 TLSH

                badata_x64.dll

                • Path C:\Users\Admin\Downloads\badata_x64.dll
                • Size 81KB
                • SHA256 74f3d90db9440e86d167b28863b506957a0cf96df6d0d852f48ea5d469af9a03
                • MD5 SHA1 SHA512 SSDEEP TLSH

                memory/1420-16-0x000001B6BC9A0000-0x000001B6BCBFF000-memory.dmp

                memory/3792-8-0x00000273C7580000-0x00000273C7CA1000-memory.dmp

                memory/3792-10-0x00000273CBFA0000-0x00000273CF311000-memory.dmp