Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/11/2024, 03:46

General

  • Target

    ef53e8071a456732eb373d3e1e6d599008681bde0a3cb05fdf862c589a2723de.dll

  • Size

    2.3MB

  • MD5

    3f088a81e399611b4516e97f08f64758

  • SHA1

    66126112f4708787e2ada92aeb1f8efbd3345e32

  • SHA256

    ef53e8071a456732eb373d3e1e6d599008681bde0a3cb05fdf862c589a2723de

  • SHA512

    3a805702e3cd11fffc9cea5184c21fd530f171156ea55fe1da4a20d0231bdf0ca38f2ccecd9915b1d20bf241168cc3114f0d64b381e6f3931b13d88a70e5eaf9

  • SSDEEP

    49152:ubW3ttgCOH9BRCm5/AIu8aR+sqnEqr8K+lfXyGmxRpp1CPwDvt3uFlDCTa:uC3ttJOHTRCGAIu8aR+s28KO/yGmxh17

Malware Config

Signatures

  • UAC bypass 3 TTPs 2 IoCs
  • Blocklisted process makes network request 2 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates connected drives 3 TTPs 22 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef53e8071a456732eb373d3e1e6d599008681bde0a3cb05fdf862c589a2723de.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3552
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef53e8071a456732eb373d3e1e6d599008681bde0a3cb05fdf862c589a2723de.dll,#1
      2⤵
      • UAC bypass
      • Blocklisted process makes network request
      • Enumerates connected drives
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • System policy modification
      PID:2040

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2040-0-0x0000000002E90000-0x0000000002E92000-memory.dmp

          Filesize

          8KB

        • memory/2040-1-0x0000000003410000-0x000000000348E000-memory.dmp

          Filesize

          504KB

        • memory/2040-2-0x0000000002FA0000-0x0000000002FF5000-memory.dmp

          Filesize

          340KB

        • memory/2040-6-0x0000000002FA0000-0x0000000002FF5000-memory.dmp

          Filesize

          340KB

        • memory/2040-5-0x0000000002FA0000-0x0000000002FF5000-memory.dmp

          Filesize

          340KB

        • memory/2040-4-0x0000000002FA0000-0x0000000002FF5000-memory.dmp

          Filesize

          340KB

        • memory/2040-7-0x0000000002FA0000-0x0000000002FF5000-memory.dmp

          Filesize

          340KB

        • memory/2040-8-0x0000000002FA0000-0x0000000002FF5000-memory.dmp

          Filesize

          340KB

        • memory/2040-9-0x0000000002FA0000-0x0000000002FF5000-memory.dmp

          Filesize

          340KB