Malicious PDF — malware analysis report

Static analysis result for SHA-256 32da8cac27e4995e…

MALICIOUS

PDF

44.6 KB Created: 2021-06-08 19:14:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 49157c4e8ef3596b40d32b4fe3a0f94b SHA-1: 85b6e89b3482c3d0fad5ef6a71ccc03df07c53cc SHA-256: 32da8cac27e4995ee8bf975df240f31010b75507704965cf3f2a66a4949c2648
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains multiple links to known malicious redirectors, disguised as game hacks and generators. The primary malicious link identified is https://netcdn.tw/app/431946152/youtube-roblox-hack-by-ropanther-game-hack. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to a malicious site, likely for further exploitation or phishing. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/youtube-roblox-hack-by-ropanther-game-hack In PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-tips_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/robux-sign_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-its-free_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-spins-coin-master-links-twitter_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/pastebin-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-place_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-hack-apk-download_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
stream_004_off000050c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50C5 24444 bytes
SHA-256: cf02bfcc2b1dd9d50a8c04f5f5c8907ea6a7fad780060b186bbf1b5dfbd2e4c8
font_01_sfnt_off000088fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88FC 19112 bytes
SHA-256: ba7f4bf503ab59add5f10fd7cf336b02c0a275ab4fa07159052631e7b19617e7

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