PDF malware analysis — malicious · 0063c070f92185a2

MALICIOUS

PDF

35.6 KB Created: 2021-07-01 22:32:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: 5072103bbabe50460ade83ab4a5ec77f SHA-1: 39f5440d127a4f796574bf1a1e870c677a8524f6 SHA-256: 0063c070f92185a276953bc20e1a8660193a207f5b00e99d3d4e212b9a3c8039

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/431946152/free-gear-roblox-2021-game-hack PDF link annotation
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/roblox-sharkbite-hack-script-pastebin_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-roblox-no-clips_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/near-pokemon-go-free-server_GM1094591345.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/code-free-robux_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/roblox-free-face-accessories_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-robux-spam-sentenace_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-robux-android_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/free-robux-hack-no-verification-need-no-password-needed_GM431946152.pdfIn PDF document text
- http://www.studiolorenzale.it/lorenzale/ckfinder/userfiles/files/what-do-you-do-when-someone-hacks-your-roblox-account_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_off000034c4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x34C4	22164 bytes
SHA-256: `efa84b4f13057c2666a54183c40eb5a27aceb57bf564b80a3e7a896f229413f6`
`font_01_sfnt_off000065ef.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65EF	19052 bytes
SHA-256: `7787e157ab1e94c57eae8550298cfa9b9b6b6253a210ce64a84988280222befb`

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