PDF malware analysis — malicious · 4fe32b73fbf7ed7c

MALICIOUS

PDF

41.5 KB Created: 2021-05-11 06:33:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 22e4f8ed34e8f7a9d8fea4b18d9df763 SHA-1: c1e30562367b68c75d2c99f084e8ff208861c4d0 SHA-256: 4fe32b73fbf7ed7c813f8cba09417a2c6c31740bee197bcaff503d31de8349d0

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 0.9971

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-coin-link-for-coin-master-game-hack PDF link annotation
- http://greasley.website/images/free-spins-and-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://greasley.website/images/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- http://greasley.website/images/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
- http://greasley.website/images/coin-master-hack-facebook_GM406889139.pdfIn PDF document text
- http://greasley.website/images/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
- http://greasley.website/images/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
- http://greasley.website/images/minecraft-beta-free_GM479516143.pdfIn PDF document text
- http://greasley.website/images/easy-roblox-today_GM431946152.pdfIn PDF document text
- http://greasley.website/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
- http://greasley.website/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- http://greasley.website/images/easy-robux-today-com_GM431946152.pdfIn PDF document text
- http://greasley.website/images/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
- http://greasley.website/images/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
- http://greasley.website/images/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
- http://greasley.website/images/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
- http://greasley.website/images/my-roblox-avatar_GM431946152.pdfIn PDF document text
- http://greasley.website/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- http://greasley.website/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
- http://greasley.website/images/coin-master-app_GM406889139.pdfIn PDF document text
- http://greasley.website/images/get-free-robux-2021_GM431946152.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_off000048db.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48DB	24496 bytes
SHA-256: `25694b8651e46bb6c55d365c07eb743b829dafbd90c03912bb8652c4652b3f46`
`font_01_sfnt_off0000810b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x810B	17880 bytes
SHA-256: `0625e4176a7f53d001741f6455d720615efffd3608056e1f92d89c9c6799a538`

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