Malicious PDF — malware analysis report

Static analysis result for SHA-256 3de1e7739bd7100d…

MALICIOUS

PDF

24.2 KB Created: 2021-07-04 09:51:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 04f62eb840b766d63abc177528e5e2a0 SHA-1: 733c2e2393ab6ab8c54ad7b20023363bdc3464c0 SHA-256: 3de1e7739bd7100d7d8bbf42c41b42c55d92e0fc80090c92f37ef27f26b2dc5b
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on promises of free game currency or hacks. These links redirect to known malicious infrastructure, including an IP address and a redirector domain, which in turn host further malicious PDFs. The document body and heuristics indicate a scam or phishing attempt leveraging popular game titles to entice clicks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.tw/app/431946152/blox-fish-free-robux-game-hack In PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/app-master_GM406889139.pdfPDF link annotation
    • http://103.30.145.97/__statics/gudangsoal/files/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/roblox-download-free-android_GM431946152.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/how-do-you-get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/minecraft-modded-client_GM479516143.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/minecraft-iphone-free_GM479516143.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/hack-velocidad-del-juego-x3-roblox_GM431946152.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/united-gaming-net-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://103.30.145.97/__statics/gudangsoal/files/free-robux-meme_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FC 22624 bytes
SHA-256: da4da183ff3b621866d287ba84502f42c4f0b652dd92febd1389b19fcd83e421

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