Malicious PDF — malware analysis report

Static analysis result for SHA-256 5370179abc21681b…

MALICIOUS

PDF

34.8 KB Created: 2021-07-01 21:46:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 86efbd7d707fc431a3e10d410c2c7520 SHA-1: 2fedb618123cfc42a0c3b015dd63232bdb855a6c SHA-256: 5370179abc21681b1f4edd79a38aca59b04430139132f03eb76c15c113693eef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text referencing free Robux and game hacks, directly leading to a known malicious redirector. The document body and embedded URLs indicate a lure for users seeking in-game currency or cheats. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/robux-today-hack-game-hack In PDF document text
    • http://digilib.iailm.ac.id/repository/how-to-get-25-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-pointsprizescom_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/robuxy-com-generator_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/luis-coment-robux-free_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/rocashcom-earn-free-robux-by-watching-videos-and-completing-surveys_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/granny-roblox-free-money-pro-hacks_GM431946152.pdfIn PDF document text
    • http://digilib.iailm.ac.id//repository/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.iailm.ac.id/repository/roblox-skywars-hack-download_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_off00002f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F9A 22760 bytes
SHA-256: 6037221ffd29b2fc6bf1f5812fc327a97d209e0f565cf97461b43dd38a69e4d0
font_01_sfnt_off000062cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62CC 19076 bytes
SHA-256: 3dc1768a58e01fd674ff46d95643bbd9ea3632b3c79c76d1f4a6cb8d1af9c12a