Analysis

  • user interaction
    yes
  • max time kernel
    114s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-ja
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-jalocale:ja-jpos:windows10-2004-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 8 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 24 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 19 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:4624
    • C:\Windows\system32\RuntimeBroker.exe
      "C:\Windows\system32\RuntimeBroker.exe"
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      PID:4428
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3936
    • C:\Windows\system32\OpenWith.exe
      C:\Windows\system32\OpenWith.exe -Embedding
      1⤵
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      • 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\badata_x64.dll"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4124
        • 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
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4740
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2020 -prefsLen 27099 -prefMapHandle 2024 -prefMapSize 270279 -ipcHandle 2100 -initialChannelId {040bf020-3d55-4401-80e2-b51a0212510f} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -appDir "C:\Program Files\Mozilla Firefox\browser" - 1 gpu
            4⤵
              PID:1812
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 2500 -prefsLen 27135 -prefMapHandle 2504 -prefMapSize 270279 -ipcHandle 2512 -initialChannelId {43649256-3fdc-4533-95f3-15236e3274d0} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 2 socket
              4⤵
              • Checks processor information in registry
              PID:1472
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 3792 -prefsLen 27325 -prefMapHandle 3796 -prefMapSize 270279 -jsInitHandle 3800 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 3808 -initialChannelId {32d393fa-7948-4257-af65-aacc1d37d7a6} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 3 tab
              4⤵
              • Checks processor information in registry
              PID:3964
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -prefsHandle 3980 -prefsLen 27325 -prefMapHandle 3984 -prefMapSize 270279 -ipcHandle 4048 -initialChannelId {10b10c84-ee06-4d3b-8cb4-0312760ef720} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -appDir "C:\Program Files\Mozilla Firefox\browser" - 4 rdd
              4⤵
                PID:4724
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 4308 -prefsLen 34824 -prefMapHandle 4320 -prefMapSize 270279 -jsInitHandle 4324 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 4332 -initialChannelId {df96bd31-06c5-49b0-bd53-b6da76c2d076} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 5 tab
                4⤵
                • Checks processor information in registry
                PID:4652
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -parentBuildID 20250130195129 -sandboxingKind 0 -prefsHandle 5136 -prefsLen 35012 -prefMapHandle 5124 -prefMapSize 270279 -ipcHandle 2868 -initialChannelId {e86a6724-9a35-40f5-931e-19ceb4117b9a} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 6 utility
                4⤵
                • Checks processor information in registry
                PID:5828
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5264 -prefsLen 32900 -prefMapHandle 5268 -prefMapSize 270279 -jsInitHandle 5272 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5280 -initialChannelId {5f82d3b3-9b67-4b05-b9b8-a7e573a6c371} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 7 tab
                4⤵
                • Checks processor information in registry
                PID:5876
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5304 -prefsLen 32900 -prefMapHandle 5308 -prefMapSize 270279 -jsInitHandle 5312 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5320 -initialChannelId {78803f42-ecdf-4e76-b390-4430e4a469a2} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 8 tab
                4⤵
                • Checks processor information in registry
                PID:5904
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc -isForBrowser -prefsHandle 5688 -prefsLen 32952 -prefMapHandle 5692 -prefMapSize 270279 -jsInitHandle 5696 -jsInitLen 253512 -parentBuildID 20250130195129 -ipcHandle 5704 -initialChannelId {9e7473f1-cf1f-4f55-a688-402bc8aaad66} -parentPid 4740 -crashReporter "\\.\pipe\gecko-crash-server-pipe.4740" -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - 9 tab
                4⤵
                • Checks processor information in registry
                PID:6024
        • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_xYQhBb8S\rundll32.exe
          C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\thumbcache_xYQhBb8S\rundll32.exe
          1⤵
          • Executes dropped EXE
          PID:2592
        • C:\Windows\system32\cmd.exe
          "C:\Windows\system32\cmd.exe"
          1⤵
            PID:4204

          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_xYQhBb8S\rundll32.exe
                • Size 70KB
                • SHA256 b53f3c0cd32d7f20849850768da6431e5f876b7bfa61db0aa0700b02873393fa
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\db\data.safe.tmp
                • Size 6KB
                • SHA256 f2f1331e0bc3409f1be592c83ab31c0bc8c4e884d122ca628705e186e00ee070
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\db\data.safe.tmp
                • Size 5KB
                • SHA256 4898ae080071c809e5c1aef8530e6f2f43d5ad95ed4656f64adbd98fa6f3c2f8
                • MD5 SHA1 SHA512 SSDEEP TLSH

                data.safe.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\db\data.safe.tmp
                • Size 7KB
                • SHA256 5099ee7d021a570bdfb95352b640cc7ace6060bbb746cb142ae14cf65727279f
                • MD5 SHA1 SHA512 SSDEEP TLSH

                events

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\events\events
                • Size 1KB
                • SHA256 49a5b7e129638a0245195b6152740d2344edd5c5d430f0e51edccb92c37afd31
                • MD5 SHA1 SHA512 TLSH

                3525ca6c-2729-4fab-a05e-5f4f3bdb3c2f

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\pending_pings\3525ca6c-2729-4fab-a05e-5f4f3bdb3c2f
                • Size 235B
                • SHA256 02ff850e8c02d9908e20f3a70fcf9933885e84edaee4ab47100d3ce381b77628
                • MD5 SHA1 SHA512 TLSH

                40d31669-f898-494e-bec3-caa283ba6111

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\pending_pings\40d31669-f898-494e-bec3-caa283ba6111
                • Size 883B
                • SHA256 a0ffbb3ec058d89c440aec930507225badf42ecd0e7437cee95f2c1ea0e423eb
                • MD5 SHA1 SHA512 TLSH

                7456510d-0907-480e-9c4f-6ca0113cf53d

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\pending_pings\7456510d-0907-480e-9c4f-6ca0113cf53d
                • Size 235B
                • SHA256 4b1ea3b9c46775de2836f63e8bf66b19321071ce95fe7774bd0f331da2ac509e
                • MD5 SHA1 SHA512 TLSH

                bdffecd4-d2aa-4ae9-a1ff-ee4a73039d8a

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\pending_pings\bdffecd4-d2aa-4ae9-a1ff-ee4a73039d8a
                • Size 2KB
                • SHA256 87e076e085419504839589dc6186486e081801db5d091f05de04ce0c248aed12
                • MD5 SHA1 SHA512 TLSH

                f32256a0-ef54-4186-9582-9c7acf010c81

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\pending_pings\f32256a0-ef54-4186-9582-9c7acf010c81
                • Size 16KB
                • SHA256 1100bb561071fad3f883259afb2e0a33023bdbdd518ee589cc2b5a2d7877cd04
                • MD5 SHA1 SHA512 SSDEEP TLSH

                fedcdf83-e8db-479a-9314-584378b80edf

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\datareporting\glean\pending_pings\fedcdf83-e8db-479a-9314-584378b80edf
                • Size 886B
                • SHA256 ef6e8679a39ff0f03860c28243fd99a75051dafec413272e63faa910d16b5021
                • MD5 SHA1 SHA512 TLSH

                prefs-1.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\prefs-1.js
                • Size 6KB
                • SHA256 c40ff1eb7010e8751a1c547531e90c23c5a9151a3974dd78c50649d2d1119958
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\prefs.js
                • Size 6KB
                • SHA256 8108cd4f35e2947dfbf40ee38642be67a55a74b1a2494d886d4d0e3cfbc68894
                • MD5 SHA1 SHA512 SSDEEP TLSH

                prefs.js

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\prefs.js
                • Size 6KB
                • SHA256 8a355b15e09da56ad54cea0fb9a785716f29f946fe2fb637f5b063a924826958
                • MD5 SHA1 SHA512 SSDEEP TLSH

                sessionCheckpoints.json.tmp

                • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ho495kqa.default-release\sessionCheckpoints.json.tmp
                • Size 288B
                • SHA256 b779351c8c6b04cf1d260c5e76fb4ecf4b74454cc6215a43ea15a223bf5bdd7e
                • 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/4428-344-0x000001BA13BB0000-0x000001BA142D1000-memory.dmp

                memory/4428-351-0x000001BA17A70000-0x000001BA1ADE1000-memory.dmp