Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c0968b2c5077069…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 06:26:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6f043081d4eaf3c1f6275ddbcce7f65e SHA-1: a02dbfd6b76389a8dad2e0844584849a44950cb7 SHA-256: 4c0968b2c5077069ae8290b1ad5ab75905dfac7c5f64dd37628bf5819fb0d034
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple URLs that lead to game-related hacks and cheats, indicating a lure for users to download potentially malicious files. The presence of 'cmd-comandos-hack-juegos-roblox' in the document text and the ML classifier's high confidence score further support its malicious nature. The document likely serves as a phishing lure to trick users into downloading malware disguised as game cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/minecraft-xbox-360-free-download-code-game-hack
    • http://digilib.ulm.ac.id/pusat/repository/cheat-roblox-mac_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-game-that-gives-you-free-stuff_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/levvvel-coin-master_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-cheat-table-for-cheat-engine_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/wewgaming-com-roblox-hack_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-body-roblox_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-star-wars-clothes-on-roblox-games_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/working-coin-master-hack_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-ios-hack-download_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-rthro-packages-roblox-list_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-robux-online-hack-2021_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-online-free-robux_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/ac-market-coin-master-hack_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/fb-coin-master-free-spins-link_GM406889139.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-free-robux-hack-no-human-verification_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/roblox-people-girl_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/cmd-comandos-hack-juegos-roblox_GM431946152.pdf
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-promo-codes-april-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003061.bin
299bcdfacc0568ce0753db3a972393467a6928e4a22ace9489b116d6be96b09d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3061 22420 bytes
font_01_sfnt_off00006239.bin
43ad2a227d4b371ba67af57b99e7f6a6af10e005219d52730f421fc1693d706f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6239 19688 bytes

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