PDF malware analysis — malicious · 463bd3731f6d8fb9

MALICIOUS

PDF

42.2 KB Created: 2021-05-18 04:48:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: d7c74233e7dcaa7281b22da9a79e3a32 SHA-1: c91abf7f27f7dc88f7054b226d8d4fae18322995 SHA-256: 463bd3731f6d8fb9df3a1cf7dd3e56aec775157b1934eca8c72f2dd602811dee

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to websites offering game hacks and generators, such as 'cheats-coin-master-free-game-hack'. The document body and embedded links strongly suggest a lure to trick users into visiting potentially malicious sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/cheats-coin-master-free-game-hack PDF link annotation
- http://kumotor.com.tw/upload/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/what-is-wurst_GM479516143.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/roblox-adopt-me-hacks-2021_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/master-coin-free-link_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/fast-robux-online_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-free-coins-link-march-2021_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/claim-robux_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/robux-premium_GM431946152.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/hack-coin-master-apk-358_GM406889139.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
- http://kumotor.com.tw/upload/userfiles/files/coin-master-apk-hack-2021_GM406889139.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_off00004a74.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A74	25380 bytes
SHA-256: `97eada41f3459db872cc12a9ea23fd42d727260107c9a0c05044db5332b9e38c`
`font_01_sfnt_off000083d8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83D8	17876 bytes
SHA-256: `d474ea2552ad4ab61fecc332af7923c97f8bd7d49077a14e922627460bfe2888`

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