Analysis

  • max time kernel
    98s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-12-2023 15:14

General

  • Target

    03482a7cae3d747392da697c2d04d281.dll

  • Size

    236KB

  • MD5

    03482a7cae3d747392da697c2d04d281

  • SHA1

    2fc5b184b3180ae0e46c99781932bc37a75e06dd

  • SHA256

    e8ce37ce99bae767df41c26f308bc9100b2074bb54d06af81706356cbcb2f434

  • SHA512

    4a426c9ac387708b43a839a688acc868b59c54a09a0a66f52d27ebc6d302ad8909c36e49a5b73a2e43fb65f6d8976ba324b01557aaac98ad8fd455688309406f

  • SSDEEP

    1536:1dKaTHN2ymZ0ofa5uQm4V7HG8ldINh+RhFtFftCgpcGO5lPf/XG8GmGwktbE:1Y4tIQG8XAmbFfaGc1fawk1E

Score
10/10

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\03482a7cae3d747392da697c2d04d281.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4840
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\03482a7cae3d747392da697c2d04d281.dll,#1
      2⤵
      • Adds autorun key to be loaded by Explorer.exe on startup
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:744

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\rsxnlfswd.dll

    Filesize

    478KB

    MD5

    e99416267b61f52fa5ab994019efd359

    SHA1

    86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

    SHA256

    768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

    SHA512

    0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

  • memory/744-5-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/744-7-0x0000000075DB0000-0x0000000075E2A000-memory.dmp

    Filesize

    488KB

  • memory/744-10-0x0000000000400000-0x0000000000444000-memory.dmp

    Filesize

    272KB

  • memory/744-11-0x0000000075DB0000-0x0000000075E2A000-memory.dmp

    Filesize

    488KB