PDF malware analysis — malicious · 7b7f30c3e599ec83

MALICIOUS

PDF

34.9 KB Created: 2021-07-04 01:52:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: d9b097c8161b4d74ddffb88cee8dfe0a SHA-1: 4fcbbf15ca309f5d300e79766f7c9f222608f1dd SHA-256: 7b7f30c3e599ec8358a8b92f03efcb35e385773c05e2b524d42a50e367a2bb6a

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/431946152/hey-google-how-do-you-get-free-robux-game-hack PDF link annotation
- https://maths-pdf.fr/ckfinder/userfiles/files/free-robux-codes-that-haven-t-been-used_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/hack-roblox-exploit-wearedevs_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-cheat-codes-2021_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/how-to-create-clothes-on-roblox-free_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-easy-robux-hack_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-cp_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/moonactive-free-spins_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/roblox-christmas-games-for-free_GM431946152.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/pubg-uc-ykleme-bedava_GM1330123889.pdfIn PDF document text
- https://maths-pdf.fr/ckfinder/userfiles/files/free-minecraft-resource-packs_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_off000030ce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30CE	22060 bytes
SHA-256: `976f4ca5f7e2c350ac32c0b90350f10fccefabcc227cd578545aebf0042bf444`
`font_01_sfnt_off000061b3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61B3	19568 bytes
SHA-256: `c947cb9e4153dfb2ea198cd701ec4d5f338e29feb7802fd2debd87897cec7901`

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