Malicious PDF — malware analysis report

Static analysis result for SHA-256 e536696614cabff5…

MALICIOUS

PDF

28.3 KB Created: 2021-05-15 16:13:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b5d2c02beb5230bda6c5d274015d9a89 SHA-1: 85874c66c76deca83d197ab3dbf3ac810a128e90 SHA-256: e536696614cabff5cff11e95bd15e13d5cdeb682f98dd2fe51bf429fcee71fab
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users with promises of free game hacks and generators, ultimately redirecting to malicious infrastructure. The primary redirector URL is https://netcdn.xyz/app/431946152/old-roblox-accounts-for-free-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 3

  • 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.
  • 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.xyz/app/431946152/old-roblox-accounts-for-free-game-hack In PDF document text
    • http://legitame.org/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://legitame.org/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://legitame.org/images/get-robux-com_GM431946152.pdfIn PDF document text
    • http://legitame.org/images/coin-master-cards-free-cards_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://legitame.org/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://legitame.org/images/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://legitame.org/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • http://legitame.org/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://legitame.org/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/how-to-get-free-spins-on-coin-master-2021-links_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://legitame.org/images/coin-master-card-link-free_GM406889139.pdfIn PDF document text
    • http://legitame.org/images/robux-free-robux_GM431946152.pdfIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000497b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x497B 17243 bytes
SHA-256: ddb39e1e9275d135ddd1c2e7f28c4f7f6950f5b3be48f30c76925f2dc1075a99

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