Malicious PDF — malware analysis report

Static analysis result for SHA-256 4669f6f29b26c7ba…

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 10:14:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1955600d69e81fad422282954683fe5f SHA-1: e3545ee51c3d127bcc96fa434649a59e9861f3bf SHA-256: 4669f6f29b26c7baea1d720349c5d52473f4a264185aedc703061bc470d541a0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a URL that is also flagged as malicious redirector infrastructure. The document body, though partially garbled, contains text related to game hacks and the suspicious URL. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves tricking the user into visiting a malicious link under the guise of obtaining free in-game currency.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.online/app/406889139/how-do-you-get-free-coins-in-coin-master-game-hack In PDF document text
    • http://digilib-unirow.ac.id/repository/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/minecraft-hacks-xbox_GM479516143.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://digilib-unirow.ac.id/repository/free-robux-gen_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005362.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5362 26304 bytes
SHA-256: 000be655e0e4cf2769ff1fdfcd835db7cc8505fac34b45b445093055faa010fb
font_01_sfnt_off00008df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF5 2896 bytes
SHA-256: 98478e2fbfabd582329b6206c0d46f67523cf5e299cb16118f1065b4dd5ec6a6
font_02_sfnt_off000097db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97DB 18344 bytes
SHA-256: 266979b75a3224caa69ab43cd24a5c7188e6c45b6e44b7c360b1f701e1d93610

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