Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9306bb0b02ace9…

MALICIOUS

PDF

33.9 KB Created: 2021-06-30 09:46:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9d103dacaf6dee45c3fd148bb42f8d3c SHA-1: d9eb7024a9d95083c4b7d1aabc5af37347119513 SHA-256: 0d9306bb0b02ace9c1a0f3af2d9329b4a569c88ea99a05f67a4c32f2f57ac93b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body also contains this URL, reinforcing the lure. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a direct link to a purported game hack suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.co/app/431946152/cheat-code-roblox-superhero-tycoon-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/creepy-hacker-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-yammy-hacking_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/survivor-hack-scrip-t-roblox-pastebin_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-card-codes-no-survey_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-robux-mr-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/ben-10-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/master-free-spin_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/advia-roblox-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-noclip-and-fly-hacks_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/cheat-engine-roblox-bypass-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-sin-hacks_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-cheat-noclip_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-corruption-hack-download_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-security-vest-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-apk-hack-android_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF2 22128 bytes
SHA-256: 3d1033876ed15ef803ed9beaa3eae0075edabe21cbaa0d7b5e7a7d342def7362
font_01_sfnt_off00005e0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0F 19424 bytes
SHA-256: 8196eaf72dd5e34a412da66ef3ad4d559fe27d97659d2cd8d7fb94551e6321fd

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