Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    23/04/2026, 00:32

General

  • Target
    Materials/CelestiaPortable/App/Celestia/intl.dll
  • Size 20KB
  • Sample260423-avncmsf12p
  • SHA256 cde9f1dabec93f328b07bc3a9dc19469f1c8afa3dc8cedd599d0f652c671dafc
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
5/10

Malware Config

Signatures

  • UPX packed file 4 IoCs

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

  • 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\Materials\CelestiaPortable\App\Celestia\intl.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4320
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\Materials\CelestiaPortable\App\Celestia\intl.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4416
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 4416 -s 604
        3⤵
        • Program crash
        PID:2292
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4416 -ip 4416
    1⤵
      PID:3504

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          memory/4416-0-0x0000000010000000-0x000000001000E000-memory.dmp

          memory/4416-1-0x00000000020C0000-0x000000000219D000-memory.dmp

          memory/4416-2-0x00000000020C0000-0x000000000219D000-memory.dmp

          memory/4416-3-0x0000000000380000-0x00000000003C5000-memory.dmp

          memory/4416-6-0x0000000010000000-0x000000001000E000-memory.dmp