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Analysis

  • max time kernel
    119s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe
    "C:\Users\Admin\AppData\Local\Temp\b2513ad2f69e95139b51cd2da8c09064.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Users\Admin\AppData\Local\usnscv.exe
      "C:\Users\Admin\AppData\Local\usnscv.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2384
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\winupdate.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4192
        • 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:3052
          • 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:1272
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2384 -s 744
        3⤵
        • Program crash
        PID:1528
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2384 -ip 2384
    1⤵
      PID:3264
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4384 --field-trial-handle=2972,i,4036376905309803364,5412922217215781933,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:1288

      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

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

        Filesize

        71KB

        MD5

        ba190ef2c7ede61ef4459947f92689a7

        SHA1

        0972e154a52f86a8126b1f79575b888ab63e5b13

        SHA256

        d06c7c0f8810a75e92b2654a2f2b54d35b1a1cf8c92ea0ef1320630f1b736424

        SHA512

        e68efb700614476abfcd0e503f1a142ee8b8ba761bb1467f7c58e21fb38a1e00d4bb0005eb85f93d0845b9d3f2344e0d32c1c5cebfa79610649213162f646626

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

        Filesize

        559KB

        MD5

        027905218f9a0db3f92e33de4eb30b31

        SHA1

        da5e3fb607c31cf125ec9dd61b5504c845d5ca7a

        SHA256

        94b41ed321c207eeea31a86f606fcd26b26bb26a88bd81b761cdf27b0b90deea

        SHA512

        46f55d671a4d468b6ee61a5c4bf8465ca941342f95fed0f60636a535d259e83ee2d98a4fb673f9b95cf6ddb8bd61bbe9b72cf55c6f6e18201a39181b82b2743d

      • memory/1912-0-0x00000000021A0000-0x00000000021A1000-memory.dmp

        Filesize

        4KB

      • memory/1912-10-0x0000000004000000-0x0000000004110000-memory.dmp

        Filesize

        1.1MB

      • memory/2384-14-0x00000000005E0000-0x00000000005F7000-memory.dmp

        Filesize

        92KB

      • memory/2384-15-0x00000000006B0000-0x00000000006B1000-memory.dmp

        Filesize

        4KB

      • memory/2384-20-0x0000000000400000-0x0000000000498000-memory.dmp

        Filesize

        608KB

      • memory/2384-21-0x00000000005E0000-0x00000000005F7000-memory.dmp

        Filesize

        92KB

      • memory/2384-24-0x0000000000400000-0x0000000000498000-memory.dmp

        Filesize

        608KB

      • memory/2384-25-0x00000000005E0000-0x00000000005F7000-memory.dmp

        Filesize

        92KB