PDF malware analysis — malicious · 377bd105c853cc7e

MALICIOUS

PDF

34.0 KB Created: 2021-07-07 02:05:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: d731739740b7ef27281254579b5d3e1c SHA-1: 115f543dd9983e45732a95f43263a729d965a1b9 SHA-256: 377bd105c853cc7e20d2b92d0a67ef2ee9be2f86450a2ad88190b7bb74406472

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators to entice users. It contains an embedded URI that redirects to a suspicious URL, likely to download a secondary payload or lead to a phishing site. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures reinforces this assessment.

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/minecraft-images-free-game-hack PDF link annotation
- https://www.metal.hr/files/roblox-gift-card-codes-free-unused_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/how-to-use-redeemed-cards-on-roblox-no-hacks_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/can-you-really-hack-coin-master-ios_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/minecraft-pe-017-0-apk-free-download-android_GM479516143.pdfIn PDF document text
- https://www.metal.hr/files/free-star-wars-clothes-on-roblox_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/coin-master-hacks-android_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
- https://www.metal.hr/files/hot-to-hack-roblox-on-mac_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/easy-roblox-today_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/free-robux-youtube-live_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/roblox-free-robux-group-funds_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/free-roblox-noclip-hack-no-download_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/skin-hacker-roblox_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/free-roblox-condo_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
- https://www.metal.hr/files/roblox-hack-me_GM431946152.pdfIn PDF document text
- https://www.metal.hr/files/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.metal.hr/files/get-free-robux-generator_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
`font_00_sfnt_off000030cf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30CF	22464 bytes
SHA-256: `fc417d235aac075879ed6074ec7d76b43a5fdc3456de428baaa2912918837257`
`font_01_sfnt_off000062d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D3	18116 bytes
SHA-256: `76604dd5740139514d3fd46c2a9d9c838f52c59b348f00b4ee9f07d20b77a693`

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