Malicious PDF — malware analysis report

Static analysis result for SHA-256 b19bb8f0df0b739e…

MALICIOUS

PDF

44.8 KB Created: 2021-05-16 15:00:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8fa02c83f7508b13df1f8f7612f8cbbd SHA-1: 5dd1f5734b47e0a428e1733c729dd2036b34dcaf SHA-256: b19bb8f0df0b739e026a4383c665df408553eb30691b9bf589abcb72995021fa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to redirectors and known malicious infrastructure, masquerading as game hacks or generators. The primary lure URL is https://netcdn.xyz/app/479516143/download-minecraft-free-hiapphere-game-hack, which is associated with a high number of redirector links. The document body also contains numerous URLs pointing to various game-related hacks and cheats, further reinforcing the lure. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the heuristics suggest a phishing or malware distribution attempt.

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 https://netcdn.xyz/app/479516143/download-minecraft-free-hiapphere-game-hack In PDF document text
    • http://www.access-coiffure-tours.fr/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-34-4-hack-download_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-free-coins-amp_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-coins-for-flip-master_GM406889139.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://www.access-coiffure-tours.fr/images/free-robux-working_GM431946152.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
stream_003_off0000490b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x490B 30232 bytes
SHA-256: 51fbd6fd1f7df10dc2e5df2723693d066b94afcd296c4fcf2c878a08ece8620c
font_01_sfnt_off00008c24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C24 18632 bytes
SHA-256: d5148a3ebf6685d38fa7a82d6609f6f0baf7c57c3f299eff6d795086d297ed64

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