PDF malware analysis — malicious · deecb8c8b5c20052

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 08:19:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: cab50bf84d5cf1bd658b8e590ab29eb7 SHA-1: 4f8c5a85448d3c088a62cef1965be287a733d04d SHA-256: deecb8c8b5c20052affc4e939d1403481fb578a5b4a539eb1b47382b6158eabf

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/406889139/free-coins-for-flip-master-online-game-hack PDF link annotation
- https://mountainholidaytreks.com/userfiles/files/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/tiktok-free-quality_GM835599320.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/minecraft-games-free-to-play-online_GM479516143.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/comment-avoir-un-cheat-sur-roblox-jailbreak_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/free-robux-website_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/hack-coin-master-iphone_GM406889139.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/free-roblox-codes-2021-november_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/rbxdemon_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/free-roblox-cards-etsy-es_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/roblox-hack_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
- https://mountainholidaytreks.com/userfiles/files/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.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_off000030bb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30BB	22788 bytes
SHA-256: `cb798ab6f304f1a779fa26a1d41191e091ac360371a830a1027381c6159e581c`
`font_01_sfnt_off000063fa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63FA	18248 bytes
SHA-256: `8cfa59634457458d339bb1e8bd2afefc03424978bac6d50b318448ff975bd272`

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