Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260618-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260618-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/06/2026, 12:14

General

  • Target
    FileZillaPortable/App/filezilla/FzResChs.dll
  • Size 28KB
  • Sample260627-pepcbsbs6p
  • SHA256 9e4988ecf8193d46b7e586cbbcd4cf723a38aac7370d52b0491d6de491c50934
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10

Malware Config

Signatures

  • UPX packed file 1 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\FileZillaPortable\App\filezilla\FzResChs.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1148
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\FileZillaPortable\App\filezilla\FzResChs.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5460

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/5460-0-0x0000000010000000-0x0000000010018000-memory.dmp