PDF malware analysis — malicious · 93bada2ba93ff458

MALICIOUS

PDF

35.4 KB Created: 2021-06-25 07:36:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3ad39bdef9e54c3f8698cad47e6cfdfe SHA-1: 12e21e0d33a655b8e6a90f4b3e65529deae8e4ab SHA-256: 93bada2ba93ff45885b4442cbcb7d50eed6cc19436f38433459c47e88c4777ef

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.co/app/406889139/coin-master-hack-no-verification-2021-game-hack PDF link annotation
- https://www.advancissurgical.com/uploads/files/files/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-real-working_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-make-a-minecraft-java-server-for-free_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/can-pokemon-go-free-coins_GM1094591345.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-golden-card-hack_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/apocalypse-rising-roblox-cheats_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-no-email_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-robux-generator-app-hacked_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-hacking-kqko_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robux-free-robux_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_off0000327f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x327F	23236 bytes
SHA-256: `ebcf7a4b59cb61e8b9a27681149cf502841f41d3fdf79bb55bf5c6e076016c95`
`font_01_sfnt_off000066cc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66CC	18540 bytes
SHA-256: `24b48f4bd2dec202ac713aa31a347014d785fe00d9062a2504b3c115a1f0ca52`

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