PDF malware analysis — malicious · 82914abc5173a252

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 07:22:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 067df095013c02b5074aa622ceafb8ab SHA-1: 5c3745e6f65f22a7fe3da544c5362b26e09618e6 SHA-256: 82914abc5173a252384c10588c3ec27f5ad94abb4bf5e2ace27ae252199a052d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free currency, such as 'ways-to-earn-robux-game-hack'. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a redirection to a potentially harmful site. No scripts were extracted, but the document's structure and embedded links point towards a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/431946152/ways-to-earn-robux-game-hack PDF link annotation
- https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-robux-on-chromebook_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-800-robux_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/500-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/bp-to-uc-pubg_GM1330123889.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-spin-link-today-16-11-2021_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/robux-download_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-hack-org_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-lucky-patcher-hack_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/minecraft-free-download-linux_GM479516143.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/roblox-hack-app_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/robux-earning-websites_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-spins-coin-master-app-iphone_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
`stream_004_off000050ee.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50EE	25932 bytes
SHA-256: `1aa7caf792c5baf14c72de39607270d66a5c605cb63f466a5ad54fe0d2ce7a48`
`font_01_sfnt_off00008dcb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DCB	18456 bytes
SHA-256: `a97dc755a6f2d2ed213355e04e982d1291fa69ee2bd0a77560176eb39858d63d`

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