Malicious PDF — malware analysis report

Static analysis result for SHA-256 ced9c7379116dcf8…

MALICIOUS

PDF

44.5 KB Created: 2021-05-19 21:23:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6bfd38a5a120a3d5585a58e2e35be161 SHA-1: 67b0f786f7e2ff203aec407aa4adfb2596c05772 SHA-256: ced9c7379116dcf8f846ab780b50aa2567bdf8490e9f9d6306eb6b8a8a5ce038
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting "game hacks" and generators. The document body and extracted URLs suggest a lure for users interested in free in-game currency or cheats. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a phishing or redirection attack, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/406889139/coin-master-free-link-facebook-game-hack In PDF document text
    • http://precisionheavyhaul.com/images/is-minecraft-free-on-computer_GM479516143.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/roblox-trolling_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/hack-coin-master-game-apk-download_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/tiktok-free-3d_GM835599320.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/pubg-uc-600-sri-lanka-price_GM1330123889.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/i-robux_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000491f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x491F 24832 bytes
SHA-256: 748a4be663a3ee05a4d8358f4a86ccf7c85c524ed956b831c6a2dbae407d1283
font_01_sfnt_off00008162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8162 18040 bytes
SHA-256: 63f6a73c8fcac7a0296ba30c45c7d116406f1db46acc5b5307ffbf1c764f0ccd
font_02_sfnt_off0000a2a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2A6 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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