Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-06-2024 06:58

General

  • Target

    ShellExtHelper64.dll

  • Size

    962KB

  • MD5

    a32c987eec0f9a19777381e86917faf5

  • SHA1

    79e76d299fa62fdfa12c2ed5491b3d59d0650df7

  • SHA256

    d664e87b7277da8cc721703899d1d13f61f1c330c82fad9141afe172ee5fc420

  • SHA512

    3049fef09fb0a687bc61ae95eb2a833a0c080154cd8090f508f323ec9589012f37c789fc62ac303da2d7bb0f969c9b98eb1edcaac8a8fc8a0700fde5087bceef

  • SSDEEP

    12288:Lh8XJTkkVGkIk+B1qibM7zMy1owYcwbPLbTF:oTF34jqyM74moj3

Score
7/10

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 2 IoCs
  • Registers COM server for autorun 1 TTPs 3 IoCs
  • Modifies registry class 35 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ShellExtHelper64.dll
    1⤵
    • Modifies system executable filetype association
    • Registers COM server for autorun
    • Modifies registry class
    PID:2692
  • 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 --field-trial-handle=4080,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=4208 /prefetch:8
    1⤵
      PID:2188

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Event Triggered Execution

    1
    T1546

    Change Default File Association

    1
    T1546.001

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Privilege Escalation

    Event Triggered Execution

    1
    T1546

    Change Default File Association

    1
    T1546.001

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Defense Evasion

    Modify Registry

    1
    T1112

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    Downloads