PDF malware analysis — malicious · 1d7fe052e43c91dc

MALICIOUS

PDF

44.0 KB Created: 2021-05-14 12:32:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 94754f9a138a962154e360abaf103406 SHA-1: f5e178507c0608da19059dfc8d9678b6a0e6d12a SHA-256: 1d7fe052e43c91dcb9a16ba3a8f43d44219fe7bd67cc258e63a58b1dfd916b21

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9648

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-coin-master-game-hack PDF link annotation
- http://artistaone.co/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
- http://artistaone.co/userfiles/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
- http://artistaone.co/userfiles/files/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/roblox-moderators_GM431946152.pdfIn PDF document text
- http://artistaone.co/userfiles/files/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
- http://artistaone.co/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://artistaone.co/userfiles/files/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/robloxfun-com-robux_GM431946152.pdfIn PDF document text
- http://artistaone.co/userfiles/files/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
- http://artistaone.co/userfiles/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
- http://artistaone.co/userfiles/files/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/coin-master-hack-tool-access-online-generator_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
- http://artistaone.co/userfiles/files/free-roblox-toy-codes-not-used_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_off00004a15.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A15	23928 bytes
SHA-256: `e222a90b1691a93df57ccb2e833aaa1761fe04698bb282a9f8ad9d63ff2efcbe`
`font_01_sfnt_off00008080.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8080	2920 bytes
SHA-256: `601c50867a41b9362538ff18e5f9479a0f9badf698aaf1eb7e88469c11719db7`
`font_02_sfnt_off00008a9a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A9A	17880 bytes
SHA-256: `c5130e18caf6f7222c4492e4e2e2fc6b4580e14129763dcab090a363ad6db2dc`

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