Analysis

  • max time kernel
    114s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-08-2024 20:10

General

  • Target

    $PLUGINSDIR/nsRichEdit.dll

  • Size

    7KB

  • MD5

    11ffcbcf1d3eada2e342558858b29779

  • SHA1

    8ecd443d2800aa0900a720288ec87223df7042e9

  • SHA256

    48b006c850221f013d2ca5b464c9e9dc3e56ee62b0cb6e1e2dcb56ae4e1edc8a

  • SHA512

    891b65613643a9e8b00768888b1754a10c596e7bb866a1e786d893f32d60711ba627b83af8556a7d065b8d92748e5ed724726a596aa5670bce37ff7975b2c330

  • SSDEEP

    96:daXX5j7uelHp9JDm5YjDfj2NTA2NeeRp8lZBu7OhB7lkZ3hBWhyK/7fc5:q5fPlHM5zyZkZXQ

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRichEdit.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\nsRichEdit.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      PID:216
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 216 -s 624
        3⤵
        • Program crash
        PID:2304
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 216 -ip 216
    1⤵
      PID:4628
    • 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 --field-trial-handle=4208,i,3387628439405076340,17957358341235678872,262144 --variations-seed-version --mojo-platform-channel-handle=4100 /prefetch:8
      1⤵
        PID:4544

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads