Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d02674cde40dfd6…

MALICIOUS

PDF

35.5 KB Created: 2021-06-21 07:29:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 92976da87e69c0f0de05672fdffad938 SHA-1: 12055d581cc6c0eb348cc3bb58135bf9430d2745 SHA-256: 0d02674cde40dfd6cbf0e2dd57859bf592a044c26638ee355ee233b0373bf2b8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains lures for game hacks and free currency, directing users to a known malicious redirector URL. The document body and embedded URLs strongly suggest a phishing or scam attempt to trick users into visiting malicious sites. No scripts were extracted, but the overall pattern indicates a social engineering attack.

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/406889139/how-to-get-free-spins-on-coin-master-hack-game-hack In PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/free-robux-net_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/free-robux-earn_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/gaming-dunia-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/coin-master-cards-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/mc-hacks_GM479516143.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/roblox-ban_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/coin-master-hack-app_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/coin-master-hack-apk-app_GM406889139.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/is-free-robux-real_GM431946152.pdfIn PDF document text
    • https://www.bhyllsacreprimaryschool.org/admin/ckfinder/userfiles/files/coin-master-hacks-no-verification_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
font_00_sfnt_off0000341f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x341F 22908 bytes
SHA-256: 5719da6b351b37ca8cb5bb682284ee0796da1e414d98580319c66c790ed05fe3
font_01_sfnt_off0000677a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x677A 18508 bytes
SHA-256: 49bb361051a993f9084e846f2e5cc7d9ef6f782e1735768e7a619114b4d1f8ea

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