Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d3f48d836dfeaaa…

MALICIOUS

PDF

33.2 KB Created: 2021-06-28 17:10:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ef84f32c19d85493bed95c9f373112be SHA-1: 16c8e5cef0fe90996af2978c9aae1d66a0dd5ef6 SHA-256: 0d3f48d836dfeaaae647099a05f3afbb6b41a0414b328d25e3f72d2b29c0cd0d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/how-do-load-hacks-roblox-game-hack PDF link annotation
    • http://library.stipjakarta.ac.id/etd/repository/crazy-robux-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-hack-in-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-make-a-badge-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-accounts-with-lifetime-obc_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-free-robux-from-your-game_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-roblox-hack-no-virus_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-hacker-melden_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-how-to-change-your-username-for-free_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-jump-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-how-to-get-free-robux-in-games_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/pokemon-go-joystick-ios-2021-free_GM1094591345.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/roblox-ipad-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/rbx-sites_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/real-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.stipjakarta.ac.id/etd/repository/free-spins-coin-master-links-blogspot_GM406889139.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_off00002bb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB7 22000 bytes
SHA-256: 1368d2d57f8c852d305abe7770646b0442e6caf1ef3363f97b741cea3f38477a
font_01_sfnt_off00005c59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C59 19160 bytes
SHA-256: fc74ccae69ef317db188111e77509dc37a03c4e14e99e0cfa319c21b5ba3bbb5

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