PDF malware analysis — malicious · e9512fdd77c50396

MALICIOUS

PDF

44.6 KB Created: 2021-05-19 21:44:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 6dde15e8c8779fc86ccdb577dfbe7807 SHA-1: 292291c3549427fe3f3445a91f230ae226cb74f6 SHA-256: e9512fdd77c50396de78c42472825ac85fc590c84dca7bb2b3db001fd75b63d6

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 for Coin Master. The document body and extracted URLs reinforce this, pointing to various game hack and free currency lures. While no scripts were explicitly extracted, the nature of the lure suggests it is intended to trick users into downloading further malicious content or visiting a phishing site.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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-free-spins-hack-download-game-hack PDF link annotation
- http://mountain.mn/uploads/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
- http://mountain.mn/uploads/files/mathep_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/free-robux-com_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-free-coins-link-blogspot_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/robux-gratis_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/tiktok-free-fans_GM835599320.pdfIn PDF document text
- http://mountain.mn/uploads/files/jailbreak-roblox-hack_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://mountain.mn/uploads/files/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://mountain.mn/uploads/files/free-robux-gift-card-codes_GM431946152.pdfIn 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_off0000493d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x493D	24620 bytes
SHA-256: `fbbc942964cc0e15ac854e831414fb2176fe700b4e05c64424f17052a7c7455f`
`font_01_sfnt_off000080d3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80D3	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00008a85.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A85	18636 bytes
SHA-256: `da694bd0fa69da9f205a2bf67330739d542643c12690bfff988ed45d7c82aeae`

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