Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cc146061b02a704…

MALICIOUS

PDF

34.9 KB Created: 2021-06-27 21:25:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 160eb4979a5c225425c204e659e58190 SHA-1: 2885603ad02c28eb45cf0afe09a098fa9e1ccc4f SHA-256: 0cc146061b02a7048c70bdac73ce6930cbc167bd65d012d1834c314519652366
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game items and hacks to entice users to click on links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. The document body contains numerous URLs pointing to other potentially malicious PDF files, suggesting a campaign distributing various lures.

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/games-on-roblox-that-will-give-u-free-hat-game-hack In PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/coinmaster-spin-ml-free_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/www-robux-redeem_GM431946152.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/free-aimbot-for-roblox_GM431946152.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/how-to-advertise-your-roblox-game-for-free_GM431946152.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/coin-master-village-3_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/inject-hack-com-roblox-hack-injector_GM431946152.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/coin-master-spin-link_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/how-to-hack-accountds-in-roblox_GM431946152.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • https://sisomdethospital.com/ckfinder/userfiles/files/best-free-minecraft-server-hosting-reddit_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30DF 22096 bytes
SHA-256: f523e173df260b5f1933708daa92ae0e07ddea21d254e36edd37acba7a050818
font_01_sfnt_off000061e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E7 19612 bytes
SHA-256: 4b6097a8cb0f6d4fe47c185792e332d24c5cb0ee0ceb7dcf15804344467bc1b6

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