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Analysis

  • max time kernel
    142s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/03/2024, 14:06

General

  • Target

    b2513ad2f69e95139b51cd2da8c09064.exe

  • Size

    1.0MB

  • MD5

    b2513ad2f69e95139b51cd2da8c09064

  • SHA1

    9be7c6c865f270fc3ddae090a7e3d3eccecd2026

  • SHA256

    8f72d46efcdeb6a82eade69cde0492916191d3802a38872c57be9d59009101a7

  • SHA512

    890684a6d127db8535ab8f2b342fae7f715b5d0ebf0a54447dbe2dc6f58fc9fa77e251ee6c2e686833d3f4b113ca570aabdfb3ac3a397cae9916289b0efec93e

  • SSDEEP

    24576:NamTlvvYXDZdzIKY0zD87wK0YICHPhBPchUwOoUaw:N5lH0VNIT7yIHpBsDs1

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe
    "C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1152
    • C:\Users\Admin\AppData\Local\usnscv.exe
      "C:\Users\Admin\AppData\Local\usnscv.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1292
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\winupdate.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2868
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /V ctfmon /D "\"C:\Users\Admin\AppData\Local\usnscv.exe\"" /f
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2552
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /V ctfmon /D "\"C:\Users\Admin\AppData\Local\usnscv.exe\"" /f
            5⤵
            • Adds Run key to start application
            • Modifies registry key
            PID:2600
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1292 -s 600
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\winupdate.bat

    Filesize

    148B

    MD5

    6f893fa27049e87617787e4964ad5ecb

    SHA1

    2efa3418e797e4d5ced66044eff405cb2f93060c

    SHA256

    a9912cc06ab8465ecbf27c5b6887ba94421e213d1fff1467ee1d8f20a72f0b60

    SHA512

    08188fd11947612212701c3fffc253bb69530091115cf6c59650ed70851a8b56b5508cf458df9e742956144be1b3738560a33871a4be782798a63f04b7dae57f

  • \Users\Admin\AppData\Local\sysinf.dll

    Filesize

    71KB

    MD5

    ba190ef2c7ede61ef4459947f92689a7

    SHA1

    0972e154a52f86a8126b1f79575b888ab63e5b13

    SHA256

    d06c7c0f8810a75e92b2654a2f2b54d35b1a1cf8c92ea0ef1320630f1b736424

    SHA512

    e68efb700614476abfcd0e503f1a142ee8b8ba761bb1467f7c58e21fb38a1e00d4bb0005eb85f93d0845b9d3f2344e0d32c1c5cebfa79610649213162f646626

  • \Users\Admin\AppData\Local\usnscv.exe

    Filesize

    559KB

    MD5

    027905218f9a0db3f92e33de4eb30b31

    SHA1

    da5e3fb607c31cf125ec9dd61b5504c845d5ca7a

    SHA256

    94b41ed321c207eeea31a86f606fcd26b26bb26a88bd81b761cdf27b0b90deea

    SHA512

    46f55d671a4d468b6ee61a5c4bf8465ca941342f95fed0f60636a535d259e83ee2d98a4fb673f9b95cf6ddb8bd61bbe9b72cf55c6f6e18201a39181b82b2743d

  • memory/1152-0-0x0000000000220000-0x0000000000221000-memory.dmp

    Filesize

    4KB

  • memory/1152-11-0x0000000004000000-0x0000000004110000-memory.dmp

    Filesize

    1.1MB

  • memory/1292-14-0x0000000000020000-0x0000000000037000-memory.dmp

    Filesize

    92KB

  • memory/1292-15-0x0000000000250000-0x0000000000251000-memory.dmp

    Filesize

    4KB

  • memory/1292-25-0x0000000000400000-0x0000000000498000-memory.dmp

    Filesize

    608KB

  • memory/1292-26-0x0000000000020000-0x0000000000037000-memory.dmp

    Filesize

    92KB

  • memory/1292-33-0x0000000000400000-0x0000000000498000-memory.dmp

    Filesize

    608KB