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Analysis

  • max time kernel
    143s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24/12/2023, 23:33

General

  • Target

    celex.exe

  • Size

    4.0MB

  • MD5

    3d05f35dd57d171ef57a37fd9e8498fc

  • SHA1

    c18418fe05ab38c0005ecbc0ed6ba10caca174c8

  • SHA256

    070a26b9b519330da249104467525be63b1b23015d23c86b306d31465e79a024

  • SHA512

    65dbc4c75dffcce863c351206cf43312c58cd1273f226c404df4da69cecabb407bfb277f4d1bbbab5952c730407a3d79f2d926b2aa77a6df7abc318c55868737

  • SSDEEP

    98304:eEdeDPCpwDjPCTp9/ekFJkybBBHzmbLcwo8XGz:roPCSfaDmkFJk6BBypo8XGz

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Themida packer 9 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\celex.exe
    "C:\Users\Admin\AppData\Local\Temp\celex.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2456 -s 892
      2⤵
        PID:2700

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2456-0-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-1-0x00000000779E0000-0x0000000077B89000-memory.dmp

      Filesize

      1.7MB

    • memory/2456-2-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-3-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-4-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-5-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-6-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-8-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-7-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-9-0x000000013F2E0000-0x000000013FD70000-memory.dmp

      Filesize

      10.6MB

    • memory/2456-11-0x00000000779E0000-0x0000000077B89000-memory.dmp

      Filesize

      1.7MB