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Analysis

  • max time kernel
    151s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/06/2024, 18:43

General

  • Target

    1305725d8a1c83c0a58e70e19f6a0a67_JaffaCakes118.dll

  • Size

    136KB

  • MD5

    1305725d8a1c83c0a58e70e19f6a0a67

  • SHA1

    b689a9498c40403109990b8c0f4c6c39a7c282b8

  • SHA256

    f0558e10dc09f85ef23ef5b28b3be877e1973adb0bd475639ae3be71a8bca373

  • SHA512

    f4641e2f32382c7bdb075d3cc0385847cdf8a59ca997c6978342140e39fdcfa5686ca2f600612de707130b6fc354c6ee380efd54c40a020503d3b907047c751f

  • SSDEEP

    1536:ssVVVHum9qaUXIkqgOL9AkYGvbiQdcghUYjtK8fMJ/nouy8mKozzx:nVH9qFVkYiOUtk8fMFoutmKoz

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Drops file in Windows directory 4 IoCs
  • Access Token Manipulation: Create Process with Token 1 TTPs 1 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1305725d8a1c83c0a58e70e19f6a0a67_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1305725d8a1c83c0a58e70e19f6a0a67_JaffaCakes118.dll,#1
      2⤵
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2104
      • C:\Windows\SysWOW64\rundll32.exe
        rundll32 "C:\Windows\msisse.dll",_RunAs@16
        3⤵
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Access Token Manipulation: Create Process with Token
        • Suspicious behavior: EnumeratesProcesses
        PID:5056
  • 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=3612 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4376

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\msisse.dll

      Filesize

      136KB

      MD5

      1305725d8a1c83c0a58e70e19f6a0a67

      SHA1

      b689a9498c40403109990b8c0f4c6c39a7c282b8

      SHA256

      f0558e10dc09f85ef23ef5b28b3be877e1973adb0bd475639ae3be71a8bca373

      SHA512

      f4641e2f32382c7bdb075d3cc0385847cdf8a59ca997c6978342140e39fdcfa5686ca2f600612de707130b6fc354c6ee380efd54c40a020503d3b907047c751f

    • memory/2104-0-0x0000000010000000-0x0000000010024000-memory.dmp

      Filesize

      144KB

    • memory/2104-7-0x0000000010000000-0x0000000010024000-memory.dmp

      Filesize

      144KB

    • memory/5056-6-0x0000000010000000-0x0000000010024000-memory.dmp

      Filesize

      144KB

    • memory/5056-8-0x0000000010000000-0x0000000010024000-memory.dmp

      Filesize

      144KB