Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7ef9e8e9d384368…

MALICIOUS

PDF

31.2 KB Created: 2021-07-19 20:42:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b0f44d9b0923ed401e1862d9a98a0c7f SHA-1: 2b99bf02ff54c1ed8c9073ff31870057e557cbbd SHA-256: c7ef9e8e9d384368eed4995bce9cc2451d7e6d0484d0721eb5987e918eff4c9b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and lures users with promises of free game hacks and generators. The document body explicitly contains the text 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' and directs users to a URL associated with malicious activity. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9893

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.tw/app/479516143/minecraft-education-free-game-hack In PDF document text
    • http://escolaarboc.cat/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://escolaarboc.cat/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://escolaarboc.cat/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://escolaarboc.cat/images/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://escolaarboc.cat/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • http://escolaarboc.cat/images/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://escolaarboc.cat/images/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • http://escolaarboc.cat/images/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://escolaarboc.cat/images/free-robux-master_GM431946152.pdfIn PDF document text
    • http://escolaarboc.cat/images/how-to-get-minecraft-for-free-on-ps4_GM479516143.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_off0000293f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x293F 21700 bytes
SHA-256: ec2d27c1780f0317c566ab53a9c9b0aba9cc0946189ce7dcf187e8f32bc3e838
font_01_sfnt_off000058aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AA 18024 bytes
SHA-256: 50b2d5ff22f0b3ffa840834f12cbec9953eabd3c4e347b5eb6eb3aff22325aed

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