PDF malware analysis — malicious · dcdf37e94513d65c

MALICIOUS

PDF

36.4 KB Created: 2021-07-09 04:08:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: f590d3341d52535df7a6043039646b6a SHA-1: d8b47ceda72f5881f6fd4f54c61b96ab911055df SHA-256: dcdf37e94513d65c13d0819933d7f0eca2942d076e0fbed89b6e0130f17b3eb0

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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-pocket-edition-download-free-pe-calculator-game-hack PDF link annotation
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-robux-place-2021_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/coin-master-free-spins-instagram_GM406889139.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/onlyrobux-site-roblox-hack_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/coin-master-root-hack_GM406889139.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/minecraft-116-free-download_GM479516143.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/roblox-free-items_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-roblox-item-code_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/minecraft-fly-hack_GM479516143.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-modded-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/free-star-codes-roblox_GM431946152.pdfIn PDF document text
- http://johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/coin-master-hack-apk-april-12-2021_GM406889139.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.

Filename	Kind	Source	Size
`font_00_sfnt_off000037c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x37C2	22488 bytes
SHA-256: `fc4b89d6f51e13bbd9279384d345e9893517c40527d63f7f03968dee8267f5b5`
`font_01_sfnt_off000069c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69C6	19044 bytes
SHA-256: `34b20f278f24286c6699cd4d98c19fc9e238f7be3ea9ba45b8deb04e7e0e65ff`

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