PDF malware analysis — malicious · ed84f9f3282e2c2c

MALICIOUS

PDF

36.8 KB Created: 2021-06-27 07:45:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: ed7e768fd483ae2e5c07a6145cce5ea8 SHA-1: b05d69ad51ef1b0cbc4a4a1fef4b3ff33a927c0c SHA-256: ed84f9f3282e2c2c726649bc441a2b1dfc9861ebec80180cf1041b876e0b01d0

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic indicating it links to a 'free generator / game hack' redirector, specifically http://netcdn.co/app/431946152/roblox-counter-blox-hack-2021-game-hack. This lure is designed to trick users into downloading malicious content or visiting a phishing site. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a malicious intent to exploit user interest in game cheats.

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.co/app/431946152/roblox-counter-blox-hack-2021-game-hack PDF link annotation
- https://www.advancissurgical.com/uploads/files/files/roblox-how-to-cheat-on-obstacle-paradise_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-pe-free-download-ios_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/rbx-claim_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/dday-hack-script-roblox-v3rmillion_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robux-command-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-hack-no-verification-2021_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/hack-de-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-survivor-script-hack-pastebin_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-coin-and-spin-link_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-admin-commands-on-roblox-without-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/twitter-free-gift-card-codes-roblox_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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000362a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x362A	23088 bytes
SHA-256: `9f1732aed6ddce2ac4ee37240fc70850398f03aab752d37cf607342f8b18a193`
`font_01_sfnt_off000069f1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69F1	19300 bytes
SHA-256: `0d1559a2cd5c5545dfb1b4747841526562f0b80dfaeec8b5a94d97843714631a`

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