Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-03-2024 01:17

General

  • Target

    dd1f709e758d60539cc0c967384c915b64596cf5af86be4cc912397da6870646.dll

  • Size

    612KB

  • MD5

    978d363476f3224d8509ba9a894185d6

  • SHA1

    6b67bcc9a77e515b06ee3966ffc9f25a2e701e9b

  • SHA256

    dd1f709e758d60539cc0c967384c915b64596cf5af86be4cc912397da6870646

  • SHA512

    a86cc8b3f77d4fff0da6e37c3009090f98603eb4a4e91d15d8e5078e6dd93c75e87a3d35f0242920efeee8a58e92c4a3ccc506659e81b52f6c53afa5c3de276b

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYW:o6RI1Fo/wT3cJYYYYYYYYYYYYW

Score
10/10

Malware Config

Signatures

  • Yunsip

    Remote backdoor which communicates with a C2 server to receive commands.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd1f709e758d60539cc0c967384c915b64596cf5af86be4cc912397da6870646.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5032
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\dd1f709e758d60539cc0c967384c915b64596cf5af86be4cc912397da6870646.dll,#1
      2⤵
        PID:1112
    • 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=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:820

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads