PDF malware analysis — malicious · a22c91c2974aa01f

MALICIOUS

PDF

35.1 KB Created: 2021-06-22 22:23:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: c24e407ae500d8ac8a7f4aa84674b268 SHA-1: 57bcf9a2ab0372c0af536d2f6419f3e4a824a0b6 SHA-256: a22c91c2974aa01f18b6a85fe77fbb533e3a756d2084f940c0e1554a840c61e3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free currency, directing users to a suspicious URL. The ML classifier strongly indicated maliciousness, and the embedded link is a common tactic for distributing malware or conducting phishing. No scripts were extracted, but the document's structure and embedded URLs suggest a social engineering attack.

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/406889139/coin-master-free-coins-link-facebook-game-hack PDF link annotation
- https://yontemakademi.com.tr/public/uploads/files/coin-master-free-shield_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/hack-assassin-roblox_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/free-roblox-templates_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/roblox-ninja-head-for-free_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/coin-master_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/free-fire-coin-master_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/pubg-uc-cheap-price_GM1330123889.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/real-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/free-roblox-accounts-2021-december_GM431946152.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/best-free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/free-tiktok-coins_GM835599320.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/coin-master-free-spins-without-human-verification_GM406889139.pdfIn PDF document text
- https://yontemakademi.com.tr/public/uploads/files/roblox-zone-free-robux_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
`stream_002_off00003299.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3299	23112 bytes
SHA-256: `6c576f5e29f118740b20ab06fea27c001cd84a0994de0827b03a0cd7f33d9fd9`
`font_01_sfnt_off00006693.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6693	18324 bytes
SHA-256: `a658124a96d7796e28a28fa88504f15f0c1b8d02bb82398f146ea7e801da5874`

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