Analysis

  • max time kernel
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    01/08/2026, 04:22

General

  • Target
    59c94832177bfb5f28a41cf5ea27468e4f503d575efa3c4c9165e4c923634aa0.exe
  • Size 11.9MB
  • Sample260801-ezrcbaxfph
  • SHA256 59c94832177bfb5f28a41cf5ea27468e4f503d575efa3c4c9165e4c923634aa0
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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 3 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Control Panel 10 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies registry class 10 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\59c94832177bfb5f28a41cf5ea27468e4f503d575efa3c4c9165e4c923634aa0.exe
    "C:\Users\Admin\AppData\Local\Temp\59c94832177bfb5f28a41cf5ea27468e4f503d575efa3c4c9165e4c923634aa0.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselSetup.exe
      "C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselSetup.exe" /i
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Modifies Control Panel
      • Modifies Internet Explorer settings
      • Suspicious use of WriteProcessMemory
      PID:2580
      • C:\Windows\SysWOW64\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" /s "C:\Windows\system32\weaselhd2.dll"
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:4956
      • C:\Windows\System32\regsvr32.exe
        "C:\Windows\System32\regsvr32.exe" /s "C:\Windows\system32\weaselhd2.dll"
        3⤵
        • Loads dropped DLL
        • Modifies registry class
        PID:6068
    • C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselDeployer.exe
      "C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselDeployer.exe" /install
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:3388
    • C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselServer.exe
      "C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselServer.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3744

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        WeaselDeployer.exe

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselDeployer.exe
        • Size 633KB
        • SHA256 36c7457a553d57df1fa3c796bbd8131847bd1fb3555cb1b7bb91f7fc63dee719
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WeaselServer.exe

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselServer.exe
        • Size 2.1MB
        • SHA256 de50ae7768af14efdfcbbcc77c473ec141eb089d00177f5ef13e7da4df664f1d
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WeaselSetup.exe

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WeaselSetup.exe
        • Size 219KB
        • SHA256 67f98bb6c0a3eac0c48e91df5475b4566f191687c0c0720a10c2a1460a609262
        • MD5 SHA1 SHA512 SSDEEP TLSH

        WinSparkle.dll

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\WinSparkle.dll
        • Size 2.7MB
        • SHA256 475d92e596e5295e98f351de3b65bb87f1d11b4082a94c2bd35ec72531bcccdf
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bopomofo.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\bopomofo.schema.yaml
        • Size 6KB
        • SHA256 c650b046d80fd04777a78347f207e261be52c7ff41edab005ae55702ad7fc3fc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bopomofo_express.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\bopomofo_express.schema.yaml
        • Size 822B
        • SHA256 aa4af76992a92422d359fa235ee2469ab922e0b91ab385fc2c1fa0a413f51295
        • MD5 SHA1 SHA512 TLSH

        bopomofo_tw.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\bopomofo_tw.schema.yaml
        • Size 895B
        • SHA256 fc1eb4bd5ac40a3b2cce72d665f28a5105e70b47ef8d5f9aa8e474ecd3f8bf52
        • MD5 SHA1 SHA512 TLSH

        cangjie5.base.dict.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\cangjie5.base.dict.yaml
        • Size 237KB
        • SHA256 8ec10bb681e6d3f2b3d33445d65b40a7c0e7ce2d63861a588238d1df91579d96
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cangjie5.dict.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\cangjie5.dict.yaml
        • Size 1KB
        • SHA256 105d6f5ba6a21c9a2d8ce29c503f6f12a1c314ae4c723f1238b7493625995404
        • MD5 SHA1 SHA512 TLSH

        cangjie5.extended.dict.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\cangjie5.extended.dict.yaml
        • Size 605KB
        • SHA256 acff5edefd03aeae4755c168467fbd963090ec046e7ad0a745583d29b9e24fd0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cangjie5.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\cangjie5.schema.yaml
        • Size 2KB
        • SHA256 eb9397f2c6fb8b0d73e5d67d8a68821a9eefad41d2b30fa080e5fa320d314695
        • MD5 SHA1 SHA512 TLSH

        cangjie5.stem.dict.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\cangjie5.stem.dict.yaml
        • Size 13KB
        • SHA256 21e49d45116ecd3863b1e9aa50eeb77715ee3a0143bcb45a4b44ccf9989c2458
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cangjie5_char.dict.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\cangjie5_char.dict.yaml
        • Size 250B
        • SHA256 861b2e4b1ecc96ce1f84d68e353b8dfeb17ea0923de6203e3446f407f3962caa
        • MD5 SHA1 SHA512 TLSH

        cangjie5_express.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\cangjie5_express.schema.yaml
        • Size 2KB
        • SHA256 7e75c9f0314107de77b17535e4357f5605a0f0d55e0fd797ad7c8df37dae0e31
        • MD5 SHA1 SHA512 TLSH

        default.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\default.yaml
        • Size 1KB
        • SHA256 7af98a181046a9f06dad71bb8dd76af270a7d556f94e0cd564cae3c2e5b9f1ce
        • MD5 SHA1 SHA512 TLSH

        detenele.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\detenele.schema.yaml
        • Size 6KB
        • SHA256 d715a5930e4d3e2f85a39abe0717698fc7ff0090effa1de69345ae174d549169
        • MD5 SHA1 SHA512 SSDEEP TLSH

        essay.txt

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\essay.txt
        • Size 6.0MB
        • SHA256 52e00bd5eed9479198923396bae01d4b5adbb13a3ec9b18e441c50cff8641407
        • MD5 SHA1 SHA512 SSDEEP TLSH

        key_bindings.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\key_bindings.yaml
        • Size 3KB
        • SHA256 e4a1141fe078627e7c4887f81417be2b753b73701410e9a734266d09034a329a
        • MD5 SHA1 SHA512 TLSH

        luna_pinyin.dict.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\luna_pinyin.dict.yaml
        • Size 938KB
        • SHA256 409038f67ca9b39ba067649ba374a97c8e37aed6a694d2ff2be8c071d608cfc4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        luna_pinyin.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\luna_pinyin.schema.yaml
        • Size 2KB
        • SHA256 231942019a396c5999c27b511559df129de4bedc6a275d2563cf017735485a90
        • MD5 SHA1 SHA512 TLSH

        luna_pinyin_fluency.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\luna_pinyin_fluency.schema.yaml
        • Size 556B
        • SHA256 c6f05530bd516d3623959146e0469fc44f0a630f4122828a6d01de2ea3804b48
        • MD5 SHA1 SHA512 TLSH

        luna_pinyin_simp.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\luna_pinyin_simp.schema.yaml
        • Size 441B
        • SHA256 17e9cf74d76d9b079a6a71dc8462aed69a12ffabe79fbd3820f471c1c8e7aec2
        • MD5 SHA1 SHA512 TLSH

        luna_pinyin_tw.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\luna_pinyin_tw.schema.yaml
        • Size 444B
        • SHA256 3eb10d825560dbf65a71283c530958951ab54ab6c7bd91881064534ab6404e88
        • MD5 SHA1 SHA512 TLSH

        luna_quanpin.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\luna_quanpin.schema.yaml
        • Size 420B
        • SHA256 7f48d43a55791a848e0d95f3a43326b9a7f13fee9d7934e0bf7b1354b3a096ca
        • MD5 SHA1 SHA512 TLSH

        pinyin.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\pinyin.yaml
        • Size 4KB
        • SHA256 5474f43c5d70061f96e2070a9751091b45fa7196a6f329944762141ba819821b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        color_scheme_aqua.png

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\preview\color_scheme_aqua.png
        • Size 3KB
        • SHA256 882eb10dc5a3baebdfc3a3088e8007c0edfa599943f74191ca714f2f88f1536c
        • MD5 SHA1 SHA512 TLSH

        punctuation.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\punctuation.yaml
        • Size 2KB
        • SHA256 c9e5147fda24d1a13085075df5a2e73deecb643069be3751c6d4d793ceb2de5b
        • MD5 SHA1 SHA512 TLSH

        stroke.dict.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\stroke.dict.yaml
        • Size 3.4MB
        • SHA256 fa0e19bef06700456e86ae2f99871410092f3cff0a59c1731930eb845586ddb3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        stroke.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\stroke.schema.yaml
        • Size 3KB
        • SHA256 fdb325b6a92110a2db299ff80258db570e88c98bc072fcad53fcd569403ad6d2
        • MD5 SHA1 SHA512 TLSH

        symbols.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\symbols.yaml
        • Size 28KB
        • SHA256 1a51b57c5061214daaec0ec3ec27caf4f65e09c6b7a9c6a7a19d0d538802de68
        • MD5 SHA1 SHA512 SSDEEP TLSH

        terra_pinyin.dict.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\terra_pinyin.dict.yaml
        • Size 1.8MB
        • SHA256 cc66a509c1856c11a3f559b61b44d2c943b204cd7da657705bb2c9ad2ba1ebe9
        • MD5 SHA1 SHA512 SSDEEP TLSH

        terra_pinyin.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\terra_pinyin.schema.yaml
        • Size 5KB
        • SHA256 86079bc74f4ba9504684d83bc25cf13264fb7e16f031b6a898c715bbe3eb0f87
        • MD5 SHA1 SHA512 SSDEEP TLSH

        terra_pinyin_12345.schema.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\terra_pinyin_12345.schema.yaml
        • Size 1KB
        • SHA256 8b7b42687e693b584b9a8e253c6523a8d23082b285c53193840cee9dd03d1c59
        • MD5 SHA1 SHA512 TLSH

        weasel.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\weasel.yaml
        • Size 17KB
        • SHA256 e61ccf20cf53d46f9a0ecf4c91f006d2dcf609c728cd43c704f812afe9b91827
        • MD5 SHA1 SHA512 SSDEEP TLSH

        zhuyin.yaml

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\data\zhuyin.yaml
        • Size 1KB
        • SHA256 1a0ba890292c19413a2ad7fbb847330e246c99425721112f40dfdd07c28756c1
        • MD5 SHA1 SHA512 TLSH

        rime.dll

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\rime.dll
        • Size 3.6MB
        • SHA256 86b4c7357d4c6d293ce5589b234d8859ca2ac30923a03bedfa3926eeaf97fb0b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        weasel.dll

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\weasel.dll
        • Size 900KB
        • SHA256 bf9f70f04f1cdf008ae50030710201dba0de211fa02949577e60322478710661
        • MD5 SHA1 SHA512 SSDEEP TLSH

        weaselx64.dll

        • Path C:\Program Files\Rime-hd2\weasel-hd2-0.17.4\weaselx64.dll
        • Size 1.0MB
        • SHA256 b01a672d749bcc426a7a36c8138f1319603ad2f957fe83f90671f1754d7f94d1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsy65D6.tmp\System.dll
        • Size 12KB
        • SHA256 23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6
        • MD5 SHA1 SHA512 SSDEEP TLSH

        nsDialogs.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsy65D6.tmp\nsDialogs.dll
        • Size 9KB
        • SHA256 89a82c4849c21dfe765052681e1fad02d2d7b13c8b5075880c52423dca72a912
        • MD5 SHA1 SHA512 SSDEEP TLSH

        bopomofo.schema.yaml

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\bopomofo.schema.yaml
        • Size 10KB
        • SHA256 af4f7959de80e349c9b99760af4ab66a5f25e3b37815a84567ebcb957eae2c76
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cangjie5.schema.yaml

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\cangjie5.schema.yaml
        • Size 41KB
        • SHA256 fcc8eb39d6fa3c21da5a7f5bbcf8d8f154906e831dd1ea617a431a7ba7ac5501
        • MD5 SHA1 SHA512 SSDEEP TLSH

        cangjie5.table.bin

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\cangjie5.table.bin
        • Size 8.3MB
        • SHA256 cc8ef485bb1b6b6d776f8a97f859d584f8e54d0d51f5447733a8dbe218a127bc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        luna_pinyin.reverse.bin

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\luna_pinyin.reverse.bin
        • Size 246KB
        • SHA256 9090ecef0be0a06f7ad7d74656ba21de03cf6a2f7e7e2fcfad81beb25fa72b01
        • MD5 SHA1 SHA512 SSDEEP TLSH

        luna_pinyin.schema.yaml

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\luna_pinyin.schema.yaml
        • Size 41KB
        • SHA256 6e14c4c93d6644e480338712c1bbbe680420d01806395c515bcd9357fa687813
        • MD5 SHA1 SHA512 SSDEEP TLSH

        luna_pinyin.table.bin

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\luna_pinyin.table.bin
        • Size 12.4MB
        • SHA256 fb9a2fae2a6fc6aa91ccdc03edb79942ddb9b147773e38ec46e47b2773ac0945
        • MD5 SHA1 SHA512 SSDEEP TLSH

        stroke.schema.yaml

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\stroke.schema.yaml
        • Size 6KB
        • SHA256 734b39240abcc241242f9def33ad9cac712f20864bb700a85d0d8a672a80876e
        • MD5 SHA1 SHA512 SSDEEP TLSH

        stroke.table.bin

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\stroke.table.bin
        • Size 4.3MB
        • SHA256 3330c254daafb35162e7ba49c8e0263661f6fed8dec261b70d4e57515b8c9f57
        • MD5 SHA1 SHA512 SSDEEP TLSH

        terra_pinyin.reverse.bin

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\terra_pinyin.reverse.bin
        • Size 254KB
        • SHA256 a2ce8eababc58720e48ad52490180a3ee7237f689938c41f37e123828fbc4af0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        terra_pinyin.schema.yaml

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\terra_pinyin.schema.yaml
        • Size 9KB
        • SHA256 7d80be993f554defe2331259ba6925a3635edcca086fa51d399ec37ad2e3c3a3
        • MD5 SHA1 SHA512 SSDEEP TLSH

        terra_pinyin.table.bin

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\terra_pinyin.table.bin
        • Size 16.8MB
        • SHA256 bc87d80064a02f3a8c9726ca784c903562bb4e0863ba8756d8ecebad9c29feb8
        • MD5 SHA1 SHA512 SSDEEP TLSH

        weasel.yaml

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\build\weasel.yaml
        • Size 16KB
        • SHA256 ed6359f900dd3dd1f40f295d4521de3f2d2fd6e1b8d6a83b2970109739915e0c
        • MD5 SHA1 SHA512 SSDEEP TLSH

        installation.yaml

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\installation.yaml
        • Size 260B
        • SHA256 e915f17ee0c68db6ddd4ed964e782d796bcdc9edecc2465407800b29da5764a2
        • MD5 SHA1 SHA512 TLSH

        user.yaml

        • Path C:\Users\Admin\AppData\Roaming\RimeHD2\user.yaml
        • Size 35B
        • SHA256 3d12660faed5ffb2f8da2e43abc87a72c6155a00cde6102d0799306a946333d4
        • MD5 SHA1 SHA512