Malicious PDF — malware analysis report

Static analysis result for SHA-256 1360718efd03b7e0…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 06:15:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 67ca19c93fd5483efc73b06db8ca92ea SHA-1: 96c1e8a080f4531f87b894e8ff2d4f2c1fabc620 SHA-256: 1360718efd03b7e0489736fbf5af8eadd1509737d943e0ce584253941afe105b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary malicious URL identified is https://netcdn.online/app/479516143/minecraft-116-free-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or redirection attempt to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/479516143/minecraft-116-free-game-hack In PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/como-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-android_GM431946152.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
stream_004_off00005344.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5344 25420 bytes
SHA-256: e0d0376aa0e25ce97280b86d8893336897634c80f4957f103252c8f6331a7efe
font_01_sfnt_off00008c7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C7C 17840 bytes
SHA-256: 6c80344f89f053e36ab2edd74b228bc0404b410c4a57199ef50147bff070e81b

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