Resubmissions

07/09/2026, 18:45

260907-xd1mzaen9x7

07/09/2026, 18:26

260907-w277aaaf497

Analysis

  • max time kernel
    298s
  • max time network
    201s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20260513-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
  • submitted
    07/09/2026, 18:26

General

  • Target
    $TEMP/R2RSARSA.dll
  • Size 136KB
  • Sample260907-w277aaaf49
  • SHA256 13bed07548f65041059f2d93b43719df23c5283d9b8bbddfbf76725a5488595b
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • 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\$TEMP\R2RSARSA.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$TEMP\R2RSARSA.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4292
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4292 -s 620
        3⤵
        • Program crash
        PID:1524
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4292 -ip 4292
    1⤵
      PID:1492

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/4292-0-0x0000000010000000-0x0000000010049000-memory.dmp

          memory/4292-3-0x00000000009E0000-0x00000000009F4000-memory.dmp

          memory/4292-1-0x0000000010000000-0x0000000010049000-memory.dmp

          memory/4292-4-0x0000000010000000-0x0000000010049000-memory.dmp