Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a8904a0566894b4…

MALICIOUS

PDF

41.6 KB Created: 2021-05-15 05:05:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4d4f61d0966578d8679446da74b5f8f3 SHA-1: dc5aae43bdc09bb15f0a621e3a4384b0ec40118e SHA-256: 7a8904a0566894b4ddddd7ab20a8823cbba45ab81c92783feaa2010445b9397c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector at `https://netcdn.xyz/app/406889139/como-hackear-coin-master-espaol-game-hack`. The document body and heuristics indicate a lure related to game hacks and free generators, suggesting a phishing or scam attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/como-hackear-coin-master-espaol-game-hack In PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-free_GM479516143.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/how-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/hack-version-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-daily-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-hack-download-apk_GM406889139.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
stream_003_off000048c5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48C5 24504 bytes
SHA-256: e121b3b84b8d39a63aaa7f9756e3c08f0b315988866515abc46e399c6545a51d
font_01_sfnt_off00008093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8093 18224 bytes
SHA-256: 123f8386315a91293958179ffe58ecd8d69104faea04a921c44476c066c42c52

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