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Analysis

  • max time kernel
    34s
  • max time network
    35s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/01/2025, 22:39

General

  • Target

    vaultFile17014791945718416581.exe

  • Size

    129KB

  • MD5

    af5814f78ef77f83f9ead1caf5ada012

  • SHA1

    b9fe65dd240558a1d39b21a0d5f3b48345263eb4

  • SHA256

    354622421a1966755dd59eff4145c8a7f1b6ed9cba2ca87f186e85f4e272b89f

  • SHA512

    287afdb13169a5807d7248ca0db117c7364beb5e8daaa98abdcb81ff12c59a7c9e04dad52dfd695b2cac303894de958f1363200c505e0491a564eba3dcd16f65

  • SSDEEP

    1536:JxqjQ+P04wsmJCsPKxG7QeLuk/3hIFmNjEX/QSjv+T:sr85CsSxG7hukqCAX/QSjve

Malware Config

Signatures

  • Detect Neshta payload 4 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

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

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Modifies registry class 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\vaultFile17014791945718416581.exe
    "C:\Users\Admin\AppData\Local\Temp\vaultFile17014791945718416581.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Users\Admin\AppData\Local\Temp\3582-490\vaultFile17014791945718416581.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\vaultFile17014791945718416581.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1208
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 -s C:\Windows\System32\scrrun.dll
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        PID:2700
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 -s C:\Windows\System32\msxml2.dll
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1044
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 -s C:\Windows\System32\msxml3.dll
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4408
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 -s C:\Windows\System32\msxml4.dll
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\vaultFile17014791945718416581.exe

    Filesize

    88KB

    MD5

    99f482ca3544aa262ea62e3e15fb2ac6

    SHA1

    287248aeeddc09dbbff13c54fca4a8cb636caf43

    SHA256

    309e066199b135d07e49120ae452171fd1e3b9dfe069ae1d63ab08f8b4d175da

    SHA512

    ee67ba85dcf5c5b99b8ce74da8fe0ffaff2ec459adcfb4a597b20422e1af3f39fad2ac4637199b1e5a031083a54cf2535077944b113b45c1b3de4b3f4cec0097

  • memory/5048-97-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5048-98-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/5048-100-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB