PDF malware analysis — malicious · 4e74f85b48991ae6

MALICIOUS

PDF

43.7 KB Created: 2021-05-11 13:34:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: fa4fbc80ed5ef69c772eb9053bab64e9 SHA-1: 11e2113560b000c1d9f30ded44ea3db080ca59d2 SHA-256: 4e74f85b48991ae680e6b6d12bc0d1e1f62afc771659700b1a4f13c879a9298e

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 0.9969

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/431946152/irobux-com-redeem-game-hack PDF link annotation
- http://windhorsetrek.com/userfiles/files/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/free-roblox-money_GM431946152.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/ro-ghoul-script_GM431946152.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/minecraft-wurst_GM479516143.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
- http://windhorsetrek.com/userfiles/files/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
- https://rblx.landIn 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_off000048d8.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48D8	27232 bytes
SHA-256: `9ee7af5ffd687ae96c91a7e34b825af22f4ba3fff0c7091d3c702028d705ee79`
`font_01_sfnt_off00008886.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8886	18284 bytes
SHA-256: `3f6fe0a3188e9c5f6f7d3e66842108fe5859511003589c1e266bd8829902cbf9`

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