Malicious PDF — malware analysis report

Static analysis result for SHA-256 3965f20204153f40…

MALICIOUS

PDF

34.5 KB Created: 2021-06-30 04:16:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: aab366ff007cb0ab165b9047e495b6db SHA-1: c740705236a446c14f95d4e64ea8c42c3e018b21 SHA-256: 3965f20204153f4089a71769385aaf8cb5328466b6eb24022a0775bd790ca88c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it's a malicious redirector lure, specifically targeting users interested in game hacks. The document body and embedded URLs point to a redirector hosted on 'netcdn.co', which is flagged as malicious infrastructure. No scripts were extracted, but the overall pattern suggests a phishing attempt to drive traffic to potentially malicious sites.

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/free-red-hair-roblox-game-hack In PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/hackear-roblox-cr7_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/play-roblox-as-a-guest-for-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-for-all-roblox_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/i-want-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-roblox-promo-codes-gen_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/hack-roblox-pc-prison-life-fr_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-free-virtual-item_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/spin-coin_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/flying-hacks-for-roblox-build-a-boat-for-treasure_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-account-robux-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/noclip-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/minecraft-bedrock-hacks-windows-10_GM479516143.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_002_off00002f9c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F9C 22628 bytes
SHA-256: d0f20340bb6e91025553801d1740e0557dabda60eec62f8c0f40dc4fc71052de
font_01_sfnt_off00006214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6214 18944 bytes
SHA-256: d3c125a4ef7d47ff82b5b1fc43219c17cd1f9fd3f24566fde7773f038bb0f88b

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