PDF malware analysis — malicious · 6cd6738030e9efca

MALICIOUS

PDF

45.8 KB Created: 2021-05-13 16:20:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: ef7d89400e5e0edcf900b31f1d0bdaa2 SHA-1: 456dda17654d56e05289cfe4f9a060b908b6704a SHA-256: 6cd6738030e9efca29b3e73739a00af37999006283420533bd2e191d87d52b91

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector, specifically pointing to the URL https://netcdn.xyz/app/406889139/coin-master-link-game-hack. The document body also contains this URL and other similar lures for game hacks and currency. This suggests the document's primary purpose is to trick users into visiting potentially malicious sites. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9432

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.xyz/app/406889139/coin-master-link-game-hack PDF link annotation
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-coins-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/client-minecraft_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/actual-free-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/today-free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.cgalgeria-dubai.com/userfiles/files/coin-master-hack_GM406889139.pdfIn PDF document text
- https://coinmasterspinandcoin.comIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004aad.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AAD	26928 bytes
SHA-256: `db1262d9c7a3af610d746f1fb2a02800b38decab8994e6588ac55a74ac660ea5`
`font_01_sfnt_off00008810.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8810	2912 bytes
SHA-256: `c8780c36cbd7b68556bee1903ce902c42a0217aeb75790306612d0c333785550`
`font_02_sfnt_off0000921f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x921F	17716 bytes
SHA-256: `6b6be525affa70ffc107ac4c88dd9d04ef97920621a7989faf1a85e6391895c0`

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