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Analysis

  • max time kernel
    120s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    15/11/2023, 23:23

General

  • Target

    file.exe

  • Size

    250KB

  • MD5

    af3b051d8a6a33705bd095b6d5608355

  • SHA1

    5d40bc70952705708d9bd87f1057e3e05d941b68

  • SHA256

    b760fd1b8d86af6b67ac24e6a269f2ffbc818d37f7930fb562cce1331213d031

  • SHA512

    7ed56d5ff9148b891894acb096b400623ac45e5913bd3a10e0462dc8ed93b49e43ebb51b2b0b851a16f867ff9f30922f1c5c6ed1b6c467e197f96999fc50d77f

  • SSDEEP

    3072:lNL7jL+5ScekHLTlZGTfobBKgJLR2ghco9CR:XPL+ocFHPlZGQKpi

Malware Config

Signatures

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Checks installed software on the system 1 TTPs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\ProgramData\FHDHCAAKEC.exe"
      2⤵
        PID:2440
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & del "C:\ProgramData\*.dll"" & exit
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:2368
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 5
          3⤵
          • Delays execution with timeout.exe
          PID:1852

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Cab2A4D.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\Tar2A9E.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • memory/1732-1-0x0000000000700000-0x0000000000800000-memory.dmp

      Filesize

      1024KB

    • memory/1732-2-0x0000000000240000-0x0000000000266000-memory.dmp

      Filesize

      152KB

    • memory/1732-3-0x0000000000400000-0x0000000000639000-memory.dmp

      Filesize

      2.2MB

    • memory/1732-124-0x0000000000400000-0x0000000000639000-memory.dmp

      Filesize

      2.2MB

    • memory/1732-144-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/1732-198-0x0000000000400000-0x0000000000639000-memory.dmp

      Filesize

      2.2MB

    • memory/1732-199-0x0000000000700000-0x0000000000800000-memory.dmp

      Filesize

      1024KB

    • memory/1732-200-0x0000000000240000-0x0000000000266000-memory.dmp

      Filesize

      152KB

    • memory/2440-217-0x0000000002250000-0x0000000002251000-memory.dmp

      Filesize

      4KB