Analysis

  • max time kernel
    164s
  • max time network
    175s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/05/2024, 19:02

General

  • Target
    7681b2aa2bb005968cb791f4c14acc08_JaffaCakes118.exe
  • Size 13.4MB
  • Sample240526-xp4trshc77
  • SHA256 36cbce31523dcd66b32bf1193725f3e04e3aa3d1f30df3ec275161c649d31a3c
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • NSIS installer 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7681b2aa2bb005968cb791f4c14acc08_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\7681b2aa2bb005968cb791f4c14acc08_JaffaCakes118.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4764
    • C:\Users\Admin\AppData\Local\Temp\InstallTools.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallTools.exe" "C:\Users\Admin\AppData\Local\Temp\7681b2aa2bb005968cb791f4c14acc08_JaffaCakes118.exe" Software\ByteFence INSNDE "C:\Users\Admin\AppData\Local\Temp\7681b2aa2bb005968cb791f4c14acc08_JaffaCakes118.exe" /mode=s /url=logs.bytefence.com/event /product=Bytefence
      2⤵
      • Executes dropped EXE
      PID:3000
    • C:\Users\Admin\AppData\Local\Temp\bytefence-installer-5.5.0.7.exe
      "C:\Users\Admin\AppData\Local\Temp\bytefence-installer-5.5.0.7.exe" /LM=3 /INSTEX /cd=12345 /thankyou /IGNORE="C:\Users\Admin\AppData\Local\Temp\7681b2aa2bb005968cb791f4c14acc08_JaffaCakes118.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:888
  • 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=1328 --field-trial-handle=3060,i,1774866140584649235,8085848018931772189,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4704

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          InstallTools.exe

          • Path C:\Users\Admin\AppData\Local\Temp\InstallTools.exe
          • Size 274KB
          • SHA256 d7ffd96c98cdcd1bacbe7542b403d60a8b700ab8305de02738f1f1c2d98aa71f
          • MD5 SHA1 SHA512 SSDEEP

          bytefence-installer-5.5.0.7.exe

          • Path C:\Users\Admin\AppData\Local\Temp\bytefence-installer-5.5.0.7.exe
          • Size 13.2MB
          • SHA256 223ab46425284dd4ae73f8e7ad478eca6a0dcb4902cbc2f203b73b7cfe0da90b
          • MD5 SHA1 SHA512 SSDEEP

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nss97D7.tmp\System.dll
          • Size 11KB
          • SHA256 a1390a78533c47e55cc364e97af431117126d04a7faed49390210ea3e89dd0e1
          • MD5 SHA1 SHA512 SSDEEP

          nsDialogs.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nss97D7.tmp\nsDialogs.dll
          • Size 9KB
          • SHA256 3cdf3e24c87666ed5c582b8b028c01ee6ac16d5a9b8d8d684ae67605376786ea
          • MD5 SHA1 SHA512 SSDEEP