Analysis

  • max time kernel
    142s
  • 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
    20-03-2024 17:13

General

  • Target

    03befcdb8d94be58b48692779bf7465b3111a4602bbaaf3bf02963b52eae10ff.dll

  • Size

    185KB

  • MD5

    365108df170fffeafec6b0a4b468f4ca

  • SHA1

    e671672af5b64c796ca9fc35bd261691409b28b0

  • SHA256

    03befcdb8d94be58b48692779bf7465b3111a4602bbaaf3bf02963b52eae10ff

  • SHA512

    a5e67cafded9223408add223580310967778600533550cfec2334857721b827608e01f3ab71c311bf9c1a50cdefcae119dc4fa74de48a195ac60003b1e7ebde3

  • SSDEEP

    3072:jDKpt9sSR0HUHPwZWLnWVfEAzV2IJIwTBftpmc+z+f3Q0L:jDgtfRQUHPw06MoV2nwTBlhm8z

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\03befcdb8d94be58b48692779bf7465b3111a4602bbaaf3bf02963b52eae10ff.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2228
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\03befcdb8d94be58b48692779bf7465b3111a4602bbaaf3bf02963b52eae10ff.dll,#1
      2⤵
        PID:3984
    • 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=3808 --field-trial-handle=2280,i,716736634476467098,11449718822158202904,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4668

      Network

      MITRE ATT&CK Matrix

      Replay Monitor

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      Downloads