Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/08/2026, 12:26

General

  • Target
    LocalOffice_Agent.exe
  • Size 36.0MB
  • Sample260827-pmjrtavand
  • SHA256 bf525b66522ac13aa81d5390f1cc35f26252bd79b4e8d52828a0ba27ecd67818
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 8 IoCs
  • Loads dropped DLL 6 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LocalOffice_Agent.exe
    "C:\Users\Admin\AppData\Local\Temp\LocalOffice_Agent.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4252
    • C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\LocalOffice_Agent.exe
      C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\LocalOffice_Agent.exe -package:"C:\Users\Admin\AppData\Local\Temp\LocalOffice_Agent.exe" -no_selfdeleter -IS_temp -media_path:"C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\" -tempdisk1folder:"C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\" -IS_OriginalLauncher:"C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\LocalOffice_Agent.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4780
      • C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{12901DB6-794E-454E-B11C-EDDE7D09964A}
        3⤵
        • Executes dropped EXE
        PID:2736
      • C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{360DF374-0DCA-4B24-8E43-44F19FA05432}
        3⤵
        • Executes dropped EXE
        PID:1832
      • C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{CBDA2308-0342-4540-A3EB-159C6E24E9C5}
        3⤵
        • Executes dropped EXE
        PID:3292
      • C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{8AA5D2D0-3DB0-4C90-AFE4-736F68323AD7}
        3⤵
        • Executes dropped EXE
        PID:5204
      • C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{F778FDE1-8C68-43F3-A8DF-C33D7549546C}
        3⤵
        • Executes dropped EXE
        PID:236
      • C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe
        C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe {EFB7539B-24F3-46B6-AF6E-3B021B51EFEF}:{312AEFA1-C081-4703-A897-79A1BCFDCB20}
        3⤵
        • Executes dropped EXE
        PID:3784
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\SysWOW64\cmd.exe /C C:\Windows\Temp\agentInstallerComponent.exe "C:\Users\Admin\AppData\Local\Temp\LocalOffice_Agent.exe" 3 > C:\Windows\Temp\DesktopCentralAgent.txt 2>&1
        3⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1788
        • C:\Windows\Temp\agentInstallerComponent.exe
          C:\Windows\Temp\agentInstallerComponent.exe "C:\Users\Admin\AppData\Local\Temp\LocalOffice_Agent.exe" 3
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          PID:6024

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        0x0409.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\0x0409.ini
        • Size 21KB
        • SHA256 8b76df0ffc9a226b532b60936765b852b89780c6e475c152f7c320e085e43948
        • MD5 SHA1 SHA512 SSDEEP TLSH

        ISSetup.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\ISSetup.dll
        • Size 1.6MB
        • SHA256 60ebc86c2dd03056ad48adc6d2468fd54c548a55d2d305577eb7e079d90ac13f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        LocalOffice_Agent.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\LocalOffice_Agent.exe
        • Size 921KB
        • SHA256 e9ba8c3f32eb58d9320fca9ed797b8fcdfb5d93ad000eb14d3cf5a68dca1e629
        • MD5 SHA1 SHA512 SSDEEP TLSH

        data1.cab

        • Path C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\data1.cab
        • Size 925KB
        • SHA256 f0ccee56adebb0a79b5b7980ab9106f54f94f827963ad8998ea811e42422596a
        • MD5 SHA1 SHA512 SSDEEP TLSH

        data1.hdr

        • Path C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\data1.hdr
        • Size 12KB
        • SHA256 d643003634136509aaf18480a62057c04b16754c58caa03dd1375c1bc1e7dafa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        layout.bin

        • Path C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\layout.bin
        • Size 550B
        • SHA256 01fecc0d057b0ef9869252a17cfb6f6680ffe3069a4f13f1ad37f2d6c3cfa202
        • MD5 SHA1 SHA512 TLSH

        setup.inx

        • Path C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\Disk1\setup.inx
        • Size 222KB
        • SHA256 23cabb1b4a802108b98d41c333c11cdb336f997776b2d3aa54367e8332028724
        • MD5 SHA1 SHA512 SSDEEP TLSH

        setup.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{8AA3A0D0-3776-4BA4-83AF-BBFC3793AC28}\setup.ini
        • Size 2KB
        • SHA256 1c3487efac42db73c2c4dda9c38ec351f97ec87fc6cade32919871908807610f
        • MD5 SHA1 SHA512 TLSH

        ISBEW64.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\ISBEW64.exe
        • Size 177KB
        • SHA256 13097ee83046bc4066b4819f8881fefe3dcebf503a519373d449a664074d9301
        • MD5 SHA1 SHA512 SSDEEP TLSH

        DIFxData.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\{417FCDE2-BCB2-4A7C-BC24-F539CD19209A}\DIFxData.ini
        • Size 84B
        • SHA256 6bc8b890884278599e4c0ca4095cefdf0f5394c5796012d169cc0933e03267a1
        • MD5 SHA1 SHA512 TLSH

        FontData.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\{417FCDE2-BCB2-4A7C-BC24-F539CD19209A}\FontData.ini
        • Size 37B
        • SHA256 a7e91b042ce33490353c00244c0420c383a837e73e6006837a60d3c174102932
        • MD5 SHA1 SHA512

        _isres_0x0409.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\{417FCDE2-BCB2-4A7C-BC24-F539CD19209A}\_isres_0x0409.dll
        • Size 1.8MB
        • SHA256 a79653e9f6c1cd1fee41316822b1954fc7ddc348218064d447f23be17cdfaeea
        • MD5 SHA1 SHA512 SSDEEP TLSH

        _isuser_0x0409.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\{417FCDE2-BCB2-4A7C-BC24-F539CD19209A}\_isuser_0x0409.dll
        • Size 1024KB
        • SHA256 da52d33bfd437c1218f2aafc9f3b8d89dc48e88e3252882df92fee4542bf7e6b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        isrt.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{D647AA0B-4CBD-4B0A-ABE0-34169D6E7AA0}\{417FCDE2-BCB2-4A7C-BC24-F539CD19209A}\isrt.dll
        • Size 425KB
        • SHA256 379176a5ecde21f492dcc719250d47c368ae039eb9e549da8e300e6d69be6d72
        • MD5 SHA1 SHA512 SSDEEP TLSH

        agentInstallerComponent.exe

        • Path C:\Windows\Temp\agentInstallerComponent.exe
        • Size 279KB
        • SHA256 d4ac05e76fc40da3a8c7600829a4f9305e8f1ce758224f29b00ce0b62a33d9f0
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4780-96-0x0000000006470000-0x0000000006637000-memory.dmp

        memory/4780-90-0x0000000010000000-0x0000000010114000-memory.dmp

        memory/4780-91-0x00000000061F0000-0x00000000061F2000-memory.dmp

        memory/4780-140-0x0000000010000000-0x0000000010114000-memory.dmp