PDF malware analysis — malicious · 971f686163478b1c

MALICIOUS

PDF

33.7 KB Created: 2021-07-03 15:29:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 6e1e8a8e6bfda510f422fbeb79decfff SHA-1: 3e8e544fb20182956ae55619eff3bb1e8382ab2f SHA-256: 971f686163478b1cfc9a3936ba295f54d7fdd2cc82a33998bd1cfd1b04cd7813

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 game hack redirector, specifically targeting users interested in 'Coin Master'. The embedded URL 'http://netcdn.tw/app/406889139/hack-the-coin-master-game-hack' is the primary indicator of this lure. While no scripts were extracted, the document's structure and the nature of the link strongly suggest a social engineering tactic to drive users to a potentially malicious site.

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/406889139/hack-the-coin-master-game-hack PDF link annotation
- https://malungtreks.com/userfiles/files/minecraft-java-free_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/tiktok-free-wala-video_GM835599320.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-zone-roblox-hack_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/is-minecraft-free_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/comment-avoir-des-robux-gratuit-sans-hack_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/bouton-free-robux_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/hack-lua-roblox_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-coin-master-app_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/games-on-roblox-where-you-win-a-free-clothes_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/tiktok-free-palestine_GM835599320.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/dayz-roblox-item-hack_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/minecraft-building-hacks_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
`font_00_sfnt_off00002f2a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F2A	22520 bytes
SHA-256: `e75a1ab95d6c3e5c618a8d79e46df193ccafec4906cb0c9258566ba47cd98c71`
`font_01_sfnt_off00006162.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6162	18172 bytes
SHA-256: `f633a4a7e5955805ffdb42196ee4ee8b3cc7331f455ff3c39e34234a500094c3`

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