Malicious PDF — malware analysis report

Static analysis result for SHA-256 323eb66f814da4fe…

MALICIOUS

PDF

44.6 KB Created: 2021-05-15 14:02:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dbdcf693145f4e03aef8942f1d2e02db SHA-1: 31a203285841f3d4ebb0518932e9af6daf59cef9 SHA-256: 323eb66f814da4feed04feaad5905958ada4e62ac7e30847851abad81150913a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack lure, directing users to a known malicious redirector. The document body and extracted URLs reinforce this lure, suggesting the intent is to drive traffic to potentially malicious sites. While no scripts were explicitly extracted, the PDF structure itself can contain JavaScript for redirection, hence the T1059.007 technique.

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/406889139/80-free-spins-coin-master-game-hack In PDF document text
    • http://learningarabic.co.uk/images/gamehunters-club-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://learningarabic.co.uk/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://learningarabic.co.uk/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://learningarabic.co.uk/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/apk-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-game-hunter_GM406889139.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_off00004927.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4927 25096 bytes
SHA-256: 218dc0f816f37be620e72e9671b09af008194532fede6baedfc3dc58c8df5465
font_01_sfnt_off00008236.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8236 2820 bytes
SHA-256: 96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
font_02_sfnt_off00008bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BD6 18268 bytes
SHA-256: c17bdfe55bcf294db1fa8b97ef7603a16e409092d20395243f391f783e354714

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