Malicious PDF — malware analysis report

Static analysis result for SHA-256 d17caf5980c63eb7…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 10:18:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2262bac63d5aa043876c7f79a9368d69 SHA-1: ff1ba804e9facef3812415b32c22daa9a5cd2721 SHA-256: d17caf5980c63eb78edf66c47e15bac43924b4280a0bcf5715085b70ad24c4bd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and generators. The primary malicious link identified is http://netcdn.co/app/431946152/nuevo-hack-para-dragon-ball-rage-cesarius-roblox-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

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/nuevo-hack-para-dragon-ball-rage-cesarius-roblox-game-hack In PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/fast-robux-online_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/coin-master-free-spins-uk_GM406889139.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/free-coins-for-flip-master-online_GM406889139.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/cheat-vehicle-simulator-roblox_GM431946152.pdfIn PDF document text
    • http://www.himalassociation.org/himal/ck_image/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000307c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307C 22052 bytes
SHA-256: d06315212f05305195adfe1923cbc16ca8cd461edf837ec851dbeae5a6f4a2ba
font_01_sfnt_off00006139.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6139 19168 bytes
SHA-256: 6a3457669fd57b01edbe5467f8798d5b5fc0da4a06dd6d40d6ef78bf768c1b99

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