PDF malware analysis — malicious · 5915f8c9b4ce9bfd

MALICIOUS

PDF

35.2 KB Created: 2021-07-01 16:01:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 6848a7766efc81bffe8c74b681cda2ed SHA-1: 229443e67b2af1693f301cd9d47717f4faadb221 SHA-256: 5915f8c9b4ce9bfd2c40474b7a5ffc107abf963cd551fd1cae02b801943490db

142 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, 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 5

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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-multi-hack-2021-game-hack PDF link annotation
- http://www.area-tlc.com/public/ckfinder/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/fly-hack-in-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/robux-prices_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/free-daily-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/tiktok-free-movies_GM835599320.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/how-to-get-free-robux-easy-zephplayz_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/earn-rbx_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/counter-blox-roblox-offensive-aimbot-hack_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/como-tener-dinero-infinito-roblox-high-school-hack_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/ss-by-snape-2021-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/telecharger-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/911-whats-your-emergency-my-roblox-accout-got-hack_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/get-free-robux-gg_GM431946152.pdfIn PDF document text
- http://www.area-tlc.com/public/ckfinder/userfiles/files/roblox-hack-tool-robux-and-tix-no-download_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_off00003197.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3197	22192 bytes
SHA-256: `60547c086769e85571e423168ece7f7a89de496ab54b01702cb919f2302fe56e`
`font_01_sfnt_off000062dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62DC	19616 bytes
SHA-256: `c4f0456fa9a5744038e2e44035394c63ca10c6f3a75b7fe31e06b2ea1eed641d`

Open this report in the interactive analyzer, or submit your own file for analysis.