PDF malware analysis — malicious · d1503d09e8d7fc75

MALICIOUS

PDF

43.5 KB Created: 2021-05-18 03:01:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 040574e673cdc3591d2e9ac9a0be66b1 SHA-1: 48ac25447b9a5ad7ded300d294a32a216cbec55f SHA-256: d1503d09e8d7fc758949fb46e8dc484f33b5e174fc15a341cf22b5906b4817fc

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/406889139/get-free-food-in-coin-master-game-hack PDF link annotation
- https://www.owlweb.co.uk/uploads/files/files/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/minecraft-java-code-free_GM479516143.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/robux-earning-websites_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-hack-online_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/offers-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/daily-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-fan-club_GM406889139.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/robux-redeem_GM431946152.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
- https://www.owlweb.co.uk/uploads/files/files/coin-master-free-spins-hack-without-human-verification_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_off00004bc9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BC9	26340 bytes
SHA-256: `95fb8ef5889e149c32b723f15a6b8b4a6e21a5c4e0fbfbc85827c2058dea20d0`
`font_01_sfnt_off000088d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88D7	17884 bytes
SHA-256: `9e8203a117569d62088e0d60748e14aeb3e41c3201478a2ae4f054b44a03d8f3`

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