Analysis

  • max time kernel
    31s
  • max time network
    32s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/11/2024, 16:11

General

  • Target
    FileZilla_3.68.1_win64-setup.exe
  • Size 11.9MB
  • Sample241108-tnddmsxpbr
  • SHA256 1feb6c12f584e98f9fddf95bf128f549310c738376fab82a5893eafed765ad83
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • 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 Program Files directory 64 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 28 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Modifies registry class 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FileZilla_3.68.1_win64-setup.exe
    "C:\Users\Admin\AppData\Local\Temp\FileZilla_3.68.1_win64-setup.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4984
    • C:\Windows\system32\regsvr32.exe
      "C:\Windows\system32\regsvr32.exe" /s "C:\Program Files\FileZilla FTP Client\fzshellext_64.dll"
      2⤵
      • Loads dropped DLL
      • Modifies registry class
      PID:3324
    • C:\Program Files\FileZilla FTP Client\filezilla.exe
      "C:\Program Files\FileZilla FTP Client\filezilla.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      PID:364

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        filezilla.exe

        • Path C:\Program Files\FileZilla FTP Client\filezilla.exe
        • Size 4.1MB
        • SHA256 abeabe84579bcd564161cbb1be06e6a8dfd6c802aba84233652244df45973f96
        • MD5 SHA1 SHA512 SSDEEP

        fzshellext.dll

        • Path C:\Program Files\FileZilla FTP Client\fzshellext.dll
        • Size 33KB
        • SHA256 73ecec88b96f7f3773ba9b6ab28ad6783b9bcc4dea6b1f38b0758a05b0adc438
        • MD5 SHA1 SHA512 SSDEEP

        fzshellext_64.dll

        • Path C:\Program Files\FileZilla FTP Client\fzshellext_64.dll
        • Size 31KB
        • SHA256 90c3528670d133bbbdad6ad33965f6c96c68ebe6692c7eab2988b6274fbb712d
        • MD5 SHA1 SHA512 SSDEEP

        libfilezilla-46.dll

        • Path C:\Program Files\FileZilla FTP Client\libfilezilla-46.dll
        • Size 931KB
        • SHA256 13df8a48d9acb9ec94252759f50865cff574d6657082a443d5aa8d63f6c3443d
        • MD5 SHA1 SHA512 SSDEEP

        libfzclient-commonui-private-3-68-1.dll

        • Path C:\Program Files\FileZilla FTP Client\libfzclient-commonui-private-3-68-1.dll
        • Size 614KB
        • SHA256 8a60e02ebf6f81e094a0972bbf303cac94ad81493c4885d4a0d3b2f4994a9e54
        • MD5 SHA1 SHA512 SSDEEP

        libfzclient-private-3-68-1.dll

        • Path C:\Program Files\FileZilla FTP Client\libfzclient-private-3-68-1.dll
        • Size 1.4MB
        • SHA256 a8f46f720c75e73fd85118c89261a44eba88fc2cdc5b625218b8d54a0c33dee2
        • MD5 SHA1 SHA512 SSDEEP

        libgcc_s_seh-1.dll

        • Path C:\Program Files\FileZilla FTP Client\libgcc_s_seh-1.dll
        • Size 115KB
        • SHA256 b4f8637957d3d9dd4cbedbf9d6e4699734fe0f4bfab43f3b8974b533b80b95a1
        • MD5 SHA1 SHA512 SSDEEP

        libgmp-10.dll

        • Path C:\Program Files\FileZilla FTP Client\libgmp-10.dll
        • Size 635KB
        • SHA256 ee7e2d6d93b3657b5deeddfaca31d762e880359893d63dd6fdf366ef6ec5e10b
        • MD5 SHA1 SHA512 SSDEEP

        libgnutls-30.dll

        • Path C:\Program Files\FileZilla FTP Client\libgnutls-30.dll
        • Size 2.0MB
        • SHA256 7a8ea0df34cfb6bc153e9cf19dc3516ae904584776d20e4a8db4dc048f8098e9
        • MD5 SHA1 SHA512 SSDEEP

        libhogweed-6.dll

        • Path C:\Program Files\FileZilla FTP Client\libhogweed-6.dll
        • Size 270KB
        • SHA256 150f860b88e0d746d2b723e84d6d238fd2b20e204e9015af5f1651e03ae9cd58
        • MD5 SHA1 SHA512 SSDEEP

        libnettle-8.dll

        • Path C:\Program Files\FileZilla FTP Client\libnettle-8.dll
        • Size 322KB
        • SHA256 8dd2d7d1327ec6588b9b9c55043b9bab8f8ce79af75e83da7968e9aee3f7991c
        • MD5 SHA1 SHA512 SSDEEP

        libpng16-16.dll

        • Path C:\Program Files\FileZilla FTP Client\libpng16-16.dll
        • Size 235KB
        • SHA256 42e830e5c14cb8aeebb45803ced83871368bb3164a6035d8f903a2345645f232
        • MD5 SHA1 SHA512 SSDEEP

        libsqlite3-0.dll

        • Path C:\Program Files\FileZilla FTP Client\libsqlite3-0.dll
        • Size 1.2MB
        • SHA256 d0a51a2cd4725c9a3f29d88429f7a27e686cefd98d6fd9beafb2930782afb9d5
        • MD5 SHA1 SHA512 SSDEEP

        libstdc++-6.dll

        • Path C:\Program Files\FileZilla FTP Client\libstdc++-6.dll
        • Size 1.9MB
        • SHA256 7bde2a8bf8dcefe8ebbedaf242a0af33fd6343215167c0ed56566e8023ead713
        • MD5 SHA1 SHA512 SSDEEP

        filezilla.mo

        • Path C:\Program Files\FileZilla FTP Client\locales\en\filezilla.mo
        • Size 275B
        • SHA256 dd0b523740c89630994264359e1eccef53c6848928efc7c034f993c1b3e4b22f
        • MD5 SHA1 SHA512

        cancel.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\cancel.png
        • Size 7KB
        • SHA256 314d5ec0dbea36c3b37d48438e7bdd50178811b7ba04e46f438873de3a5c1fe0
        • MD5 SHA1 SHA512 SSDEEP

        compare.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\compare.png
        • Size 8KB
        • SHA256 7788bebba4f6fa835d285950da618e348642e7479a662c961d9447aaff1464a9
        • MD5 SHA1 SHA512 SSDEEP

        disconnect.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\disconnect.png
        • Size 4KB
        • SHA256 bf0f361801f7dd78c748d611daeb2180d50dbd9e3a284758bc4a5e6f773758d5
        • MD5 SHA1 SHA512 SSDEEP

        filter.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\filter.png
        • Size 2KB
        • SHA256 5e67131effde188b8c27d92982ecbfe9aaa313d0641243e69de7eb982a97a782
        • MD5 SHA1 SHA512

        leds.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\leds.png
        • Size 69KB
        • SHA256 1d6c546397e8ebf71503279d0d8da8a9343908fec4b9b1d97926ec5532efb365
        • MD5 SHA1 SHA512 SSDEEP

        localtreeview.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\localtreeview.png
        • Size 3KB
        • SHA256 a67af84c06743847ffc0edbc79ffc4a3ce93c89ff57c03c0f18c3782b5347988
        • MD5 SHA1 SHA512

        logview.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\logview.png
        • Size 4KB
        • SHA256 9bf88f5a0f4deb7035cfd2930225596b4e0767010d34f01c3ee093c17164033f
        • MD5 SHA1 SHA512 SSDEEP

        processqueue.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\processqueue.png
        • Size 7KB
        • SHA256 930281b5e99bcf3c891b48a2830f5bcfd19d2ab03f9a2cffc2594016233ccd14
        • MD5 SHA1 SHA512 SSDEEP

        queueview.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\queueview.png
        • Size 2KB
        • SHA256 444b408a816c39e965a7c960c44c8976ed99b1ef3263088b41b6a170f3747d9c
        • MD5 SHA1 SHA512

        reconnect.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\reconnect.png
        • Size 3KB
        • SHA256 981892d7fd00d58c2ed41e33bfe1cc35fda8f66d3ea1a533063cba3058331683
        • MD5 SHA1 SHA512

        refresh.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\refresh.png
        • Size 8KB
        • SHA256 e72e2057afe1c9c449c2f43a83129dc24d4349e34f40ce957b56f7f87aba927a
        • MD5 SHA1 SHA512 SSDEEP

        remotetreeview.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\remotetreeview.png
        • Size 2KB
        • SHA256 75a915c0caf149c46df534577f1fb089fac8cf0efda8fbe6115b5118942391e5
        • MD5 SHA1 SHA512

        sitemanager.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\sitemanager.png
        • Size 3KB
        • SHA256 66d6c15dd8e819e7b62d277aa237ff77c8c595f65582a368cbbc15427f82bfd2
        • MD5 SHA1 SHA512

        speedlimits.png

        • Path C:\Program Files\FileZilla FTP Client\resources\default\480x480\speedlimits.png
        • Size 12KB
        • SHA256 d42aad945404d1a5f66a168f6af3a89d34be856fca13911ee0a5d3da8ab7b084
        • MD5 SHA1 SHA512 SSDEEP

        theme.xml

        • Path C:\Program Files\FileZilla FTP Client\resources\default\theme.xml
        • Size 212B
        • SHA256 209f8abd4d06ba609d1d92943ccd2b7ef8918e88ca3f159ab8d1d6fa82ebcda1
        • MD5 SHA1 SHA512

        defaultfilters.xml

        • Path C:\Program Files\FileZilla FTP Client\resources\defaultfilters.xml
        • Size 2KB
        • SHA256 27b4c87e3f1a75ce58cce51086d8445e3c33590111a258be8344b842f74c05d0
        • MD5 SHA1 SHA512

        wxbase32u_gcc_custom.dll

        • Path C:\Program Files\FileZilla FTP Client\wxbase32u_gcc_custom.dll
        • Size 1.7MB
        • SHA256 6351518bc552499ca3b28822d8f47412af1fc16ef4bd408a9ad6a137e21e24ef
        • MD5 SHA1 SHA512 SSDEEP

        wxbase32u_xml_gcc_custom.dll

        • Path C:\Program Files\FileZilla FTP Client\wxbase32u_xml_gcc_custom.dll
        • Size 235KB
        • SHA256 4352eb6f7554bf5de27e13d81f8c81d2a86b631ee69c8aceceb9d5d7d453b002
        • MD5 SHA1 SHA512 SSDEEP

        wxmsw32u_aui_gcc_custom.dll

        • Path C:\Program Files\FileZilla FTP Client\wxmsw32u_aui_gcc_custom.dll
        • Size 495KB
        • SHA256 bea4fb7efd55ebd0a114d45d6f133862bba687cba434245388a7591a41777676
        • MD5 SHA1 SHA512 SSDEEP

        wxmsw32u_core_gcc_custom.dll

        • Path C:\Program Files\FileZilla FTP Client\wxmsw32u_core_gcc_custom.dll
        • Size 5.0MB
        • SHA256 15334a7dd815270477f502718c0bddc220125c9c63a07075c5118e25ad68400d
        • MD5 SHA1 SHA512 SSDEEP

        wxmsw32u_xrc_gcc_custom.dll

        • Path C:\Program Files\FileZilla FTP Client\wxmsw32u_xrc_gcc_custom.dll
        • Size 729KB
        • SHA256 4fe7f99dcd2cb2f49f52dc144e232970e1b99f22389aa783ff2f56a84f8e6be0
        • MD5 SHA1 SHA512 SSDEEP

        zlib1.dll

        • Path C:\Program Files\FileZilla FTP Client\zlib1.dll
        • Size 142KB
        • SHA256 932327e73c36ee4ca76583aec69100302f465772d1ca17ad6414920e3f4f0221
        • MD5 SHA1 SHA512 SSDEEP

        StartMenu.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsgAE34.tmp\StartMenu.dll
        • Size 7KB
        • SHA256 110545415a59402635e1c9439acba15b44bab268ed02ad2a262ce12604a47855
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsgAE34.tmp\System.dll
        • Size 12KB
        • SHA256 9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
        • MD5 SHA1 SHA512 SSDEEP

        UAC.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsgAE34.tmp\UAC.dll
        • Size 14KB
        • SHA256 2f7f8fc05dc4fd0d5cda501b47e4433357e887bbfed7292c028d99c73b52dc08
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsgAE34.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 4913d4cccf84cd0534069107cff3e8e2f427160cad841547db9019310ac86cc7
        • MD5 SHA1 SHA512

        nsDialogs.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsgAE34.tmp\nsDialogs.dll
        • Size 9KB
        • SHA256 4b7d17da290f41ebe244827cc295ce7e580da2f7e9f7cc3efc1abc6898e3c9ed
        • MD5 SHA1 SHA512 SSDEEP

        nsis_appid.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsgAE34.tmp\nsis_appid.dll
        • Size 3KB
        • SHA256 e9e1ba410636698d666b328eea71346b8287248d262e44da07ce8b5fa24c5e5f
        • MD5 SHA1 SHA512

        FileZilla.lnk

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\FileZilla FTP Client\FileZilla.lnk
        • Size 1KB
        • SHA256 aed32e79e3366e556f7ab42f2daffed8307372a5e828d03c347a7165e66e46f4
        • MD5 SHA1 SHA512

        FileZilla.lnk~RFe57fbd5.TMP

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\FileZilla FTP Client\FileZilla.lnk~RFe57fbd5.TMP
        • Size 985B
        • SHA256 212a9eee31bcef9946ce95cca93769d015835054c70184d539e0ca786329396d
        • MD5 SHA1 SHA512

        memory/364-997-0x00007FF9A34A0000-0x00007FF9A358D000-memory.dmp

        memory/364-1005-0x00007FF9A2CC0000-0x00007FF9A2ED4000-memory.dmp

        memory/364-1011-0x00000000736D0000-0x000000007370F000-memory.dmp

        memory/364-1010-0x00007FF9A5F20000-0x00007FF9A5F60000-memory.dmp

        memory/364-1009-0x0000000073710000-0x0000000073739000-memory.dmp

        memory/364-1006-0x00007FF9A27B0000-0x00007FF9A2CB1000-memory.dmp

        memory/364-1004-0x00007FF9A2EE0000-0x00007FF9A2F84000-memory.dmp

        memory/364-1003-0x00007FF9A2F90000-0x00007FF9A3177000-memory.dmp

        memory/364-1002-0x00007FF9AFC20000-0x00007FF9AFC41000-memory.dmp

        memory/364-1001-0x0000000066380000-0x00000000664BB000-memory.dmp

        memory/364-1000-0x00007FF9A3180000-0x00007FF9A323A000-memory.dmp

        memory/364-999-0x00007FF9A3240000-0x00007FF9A32C2000-memory.dmp

        memory/364-998-0x00007FF9A32D0000-0x00007FF9A3494000-memory.dmp

        memory/364-996-0x00007FF9A3590000-0x00007FF9A36EF000-memory.dmp

        memory/364-1008-0x00007FF9A2700000-0x00007FF9A2755000-memory.dmp

        memory/364-1007-0x00007FF9A2760000-0x00007FF9A27A9000-memory.dmp

        memory/364-995-0x00007FF9A36F0000-0x00007FF9A378E000-memory.dmp

        memory/364-994-0x00007FF611690000-0x00007FF611AA2000-memory.dmp