PDF malware analysis — malicious · 82090b6714edc700

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 17:15:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 0a40469ddeda2fb3bba2a4230a127b86 SHA-1: 97ea0f7f5aa2df4959fcd405dd9d831e35ed3599 SHA-256: 82090b6714edc700eaf5bd2aa559013e483425025208e28fa579efa12e1f6e09

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/apps-that-give-you-free-robux-game-hack PDF link annotation
- https://pfpro.de/ckfinder/userfiles/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/coin-master-map_GM406889139.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/free-robux-codes_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/toolbox-mod_GM479516143.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/get-robux_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/free-robux-videos_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/coin-master-hack_GM406889139.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/robux-earner_GM431946152.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
- https://pfpro.de/ckfinder/userfiles/files/free-minecraft-skins-pc_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_off00002d67.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2D67	22792 bytes
SHA-256: `e634653eec5272e9ab4da7f065a5d5535694e99008f17efd13d8097e2ff8acfc`
`font_01_sfnt_off00006093.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6093	19560 bytes
SHA-256: `44687920bbab424739eb00f0c10a6a4a3701389ccd8aaf990bb054a3fc46e25a`

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