Malicious PDF — malware analysis report

Static analysis result for SHA-256 9307b788b565043b…

MALICIOUS

PDF

34.6 KB Created: 2021-06-19 13:42:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8a162f081b1a1bcdaaee85b0ece902d5 SHA-1: aababf7b8973270ee5e0374f9c6ca89b41eb1cf0 SHA-256: 9307b788b565043b7e7bc44f00f88d5ae15137d7437f276c22757f1c89528aef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, specifically advertising 'free generator / game hack' lures for popular games like Roblox. The document body and embedded URLs reinforce this theme, aiming to trick users into clicking through to potentially malicious sites. The ML classifier strongly supports the malicious nature of this PDF.

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/hack-para-ayudar-a-la-gente-roblox-game-hack In PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/lol-this-guy-tryed-to-hack-me-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/ww-robux_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/cheat-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/promo-code-hack-for-robux_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/flobfun-roblox-hacker-sur-pc_GM431946152.pdfIn PDF document text
    • http://www.wrlshipping.com/uploaded_files/userfiles/files/roblox-t-shirt-free_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
font_00_sfnt_off00003021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3021 22008 bytes
SHA-256: 8d88d0d19f0f3199c70bc1bdb37b3a62afe891aca555e23cb6cdbc1a2b431f16
font_01_sfnt_off000060cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CF 19408 bytes
SHA-256: 92afc048316185140f225716e9468aa3f6c7b829b79d51481ad2844db8860fec

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