PDF malware analysis — malicious · 116dc29fe45de0da

MALICIOUS

PDF

42.5 KB Created: 2021-05-13 09:42:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: a0744d53645336d7adec3e125a5d04be SHA-1: 9cb8ea6eb201d1c9b79cdfdfab8b0b1d0cd51c93 SHA-256: 116dc29fe45de0da3c3ed1415456843209d7ace56c9f1b95064719239908bcc3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple links to external websites, with a primary URL pointing to a 'free generator / game hack'. The document body and heuristics strongly suggest a lure for game-related cheats or hacks, which is a common pretext for distributing malware or conducting phishing. No scripts were extracted, but the presence of embedded URLs and the ML classification indicate malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/free-links-for-coin-master-2021-game-hack PDF link annotation
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/hacks-minecraft_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-link-app_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-coin-link_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/roblox-robux-generator_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-2021-robux_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/robux-offer-wall_GM431946152.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.misceren.com/home/misceren/public_html/upload/files/toolbox-apk_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
`stream_003_off00004b08.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B08	24716 bytes
SHA-256: `f250dd85a5b9e0be702b4d5e7d3bc79ab81816c0283f2d9ddab635c00713a6de`
`font_01_sfnt_off000083cb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83CB	18284 bytes
SHA-256: `a2acd8bf1a51d4e254a7633d59ee55714bf8557f87202f8b12d552e9cd1876aa`

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