Analysis

  • user interaction
    yes
  • max time kernel
    13s
  • max time network
    9s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260617-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260617-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/06/2026, 22:24

General

  • Target
    Lunar_Builder.exe
  • Size 7.7MB
  • Sample260627-2bdsmsd13r
  • SHA256 9ad27fa8bb7d8258fb1e572c94d107181ba2314a4db4d3222c3e0dc407493b45
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Costura .NET executable packer 1 IoCs

    Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

  • 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 AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Lunar_Builder.exe
    "C:\Users\Admin\AppData\Local\Temp\Lunar_Builder.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:4296
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4296 -s 1592
      2⤵
      • Program crash
      PID:4748
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4296 -ip 4296
    1⤵
      PID:6116

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          SiticoneDotNetRT.dll

          • Path C:\Users\Admin\AppData\Local\Temp\16ec68cf-d28f-4048-90c5-4286b379e033\SiticoneDotNetRT.dll
          • Size 136KB
          • SHA256 77dc05a6bda90757f66552ee3f469b09f1e00732b4edca0f542872fb591ed9db
          • MD5 SHA1 SHA512 SSDEEP TLSH

          GunaUIDotNetRT.dll

          • Path C:\Users\Admin\AppData\Local\Temp\21130707-67bd-4fd2-91d2-b9f759127e7b\GunaUIDotNetRT.dll
          • Size 94KB
          • SHA256 fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4296-8-0x0000000006510000-0x00000000065A2000-memory.dmp

          memory/4296-9-0x00000000064E0000-0x00000000064EA000-memory.dmp

          memory/4296-4-0x00000000748C0000-0x000000007507C000-memory.dmp

          memory/4296-5-0x00000000748C0000-0x000000007507C000-memory.dmp

          memory/4296-6-0x0000000006050000-0x0000000006432000-memory.dmp

          memory/4296-7-0x00000000069F0000-0x0000000006FAA000-memory.dmp

          memory/4296-0-0x00000000748D2000-0x00000000748D3000-memory.dmp

          memory/4296-3-0x00000000748C0000-0x000000007507C000-memory.dmp

          memory/4296-10-0x00000000066D0000-0x00000000068A8000-memory.dmp

          memory/4296-2-0x00000000748C0000-0x000000007507C000-memory.dmp

          memory/4296-18-0x0000000007AB0000-0x0000000007C58000-memory.dmp

          memory/4296-1-0x0000000000330000-0x000000000134A000-memory.dmp

          memory/4296-26-0x0000000070C70000-0x0000000070CA7000-memory.dmp

          memory/4296-27-0x0000000009280000-0x00000000092C0000-memory.dmp

          memory/4296-28-0x00000000748C0000-0x000000007507C000-memory.dmp

          memory/4296-29-0x0000000070C70000-0x0000000070CA7000-memory.dmp