Analysis

  • max time kernel
    145s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-03-2024 18:54

General

  • Target

    354f5d2ab8051c82e457800a19a7fca42857a10db2ce7cda10978884f026cf7a.dll

  • Size

    737KB

  • MD5

    3f922f03ad1079988ee73564861764fa

  • SHA1

    115a232205c030eb0632e938fc6ef0c20fe36373

  • SHA256

    354f5d2ab8051c82e457800a19a7fca42857a10db2ce7cda10978884f026cf7a

  • SHA512

    ad1f7b31c5119a125d2b1c0e3cf11b808375d459a97a0d3363d9e71a787e9db5d5adb2282d14da5e422e46bc552abda6b2c529d36391dc26a355cf1a1b607e9d

  • SSDEEP

    6144:o6C5AXbMn7UI1FoV2gwTBlrIckPJYYYYYYYYYYYYG:o6RI1Fo/wT3cJYYYYYYYYYYYYG

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\354f5d2ab8051c82e457800a19a7fca42857a10db2ce7cda10978884f026cf7a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\354f5d2ab8051c82e457800a19a7fca42857a10db2ce7cda10978884f026cf7a.dll,#1
      2⤵
        PID:4384
    • 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=3768 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4760

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads