Analysis

  • max time kernel
    147s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240319-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/04/2024, 18:28

General

  • Target

    $PLUGINSDIR/nsUnzip.dll

  • Size

    178KB

  • MD5

    bde32fc5dcc9d98520c95fc23fa7bc92

  • SHA1

    e81891aa3f6e500c33474c21ff324083cbb50fcd

  • SHA256

    1fa8f2dfbe9fb83c0660e25e193e5aa09e1d4cd4af4f62e056b2930eb595c4c9

  • SHA512

    99b8d5671fe0a6d6b3a660fd94cef91a69f20863bff2faaae686a673c15789d3d52dbc44c9699fa90f13f4af7d1bfb40c6449d73f608d9c6b5c1fffbf29383b3

  • SSDEEP

    3072:97AFxQv5aD8vzH4upPcj/n/TEUruv/H3cwvZmBMRKqm5wJqb:97nXzpPOooAH3cwvZkcPPob

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsUnzip.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3360
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsUnzip.dll,#1
      2⤵
        PID:2144
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2144 -s 612
          3⤵
          • Program crash
          PID:1500
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2144 -ip 2144
      1⤵
        PID:2300
      • 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=3760 --field-trial-handle=2264,i,1475924722205134884,16549311107360026087,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:1640

        Network

              MITRE ATT&CK Matrix

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              Downloads