Analysis

  • max time kernel
    138s
  • max time network
    160s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 03:00

General

  • Target

    $R2/nspr4.dll

  • Size

    260KB

  • MD5

    68328b747cc7e2dc96e4e39c1cbbde08

  • SHA1

    d1a049f9abc50b334ad94556f293ac0148de6408

  • SHA256

    7c2950f81ff490d45e063236c2797f1dc6833681e34f9e379fc2c2687b63a500

  • SHA512

    ce3eb2989d183e56e1ed346eac01b70cbecadddf08653f9e3687564df5f6b75995e8258fae2481a5c8498914c8e24fe769b90230593f898ca3e1fcf0eae6430d

  • SSDEEP

    3072:eVBvCEfCCwRBy5kYZBLzuvvG29RqwP+5fEPaFSEW0beHpTIBVagk2v6lGw2V9hOn:eLvZfGy5kAOx2SEW04WBhAlb2VU28vu

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\$R2\nspr4.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$R2\nspr4.dll,#1
      2⤵
        PID:2100
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 640
          3⤵
          • Program crash
          PID:4236
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 2100 -ip 2100
      1⤵
        PID:2128
      • 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=4104 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:2364

        Network

        MITRE ATT&CK Matrix

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        Downloads