PDF malware analysis — malicious · 841786fedafdcaec

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 06:52:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: ab39b89d41ad7e2f98d9e774a41aff83 SHA-1: 16004f1b9ee1e019ce61129dffe1748f890b84d6 SHA-256: 841786fedafdcaec7d649452f50b8e17606c2089611a3f9d4024228b25907da6

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/479516143/impact-minecraft-hack-game-hack PDF link annotation
- https://maximabm.com/uploaded_files/userfiles/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/roblox-injector-hack-2021_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/akatzuki-roblox-t-shirt-free_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/free-robux-100-working-no-verification_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/www-robux-us_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/roblox-ben-10-cheats_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/roblox-md5-hack_GM431946152.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
- https://www.maximabm.com/uploaded_files/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/e-free-roblox_GM431946152.pdfIn PDF document text
- https://maximabm.com/uploaded_files/userfiles/files/appsmob-coin-master-hack_GM406889139.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_off0000335a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x335A	22428 bytes
SHA-256: `f7a9c8c91e563cacc68d98f216db8b54ff8c16742d3edf3cad3ad9b866730879`
`font_01_sfnt_off000064c1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64C1	18460 bytes
SHA-256: `560daa493e3c18271d72595888245448e6a383e824fa1aae0703dee66e36b27a`

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