PDF malware analysis — malicious · 76d1a33447d01294

MALICIOUS

PDF

42.2 KB Created: 2021-05-15 02:03:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 37c647bb1c38587a4a140a595a289fac SHA-1: 73d1f85b6fc20130d06d319942dd9b50c28db957 SHA-256: 76d1a33447d01294cdcc345984ff4e38fe18497bd275fedb36d91e8527be35ae

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically promoting free spins and hacks for Coin Master. The ML classifier also flagged this document as malicious. The presence of a visual download button further supports the lure to click the malicious link, likely leading to a secondary payload download or phishing attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/monttechs.com-coin-master-free-spins-game-hack In PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/roblox-bux-free_GM431946152.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/robux-prices_GM431946152.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/free-spin-and-coin-blogspot_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-today_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-shield-hack_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
- http://www.weworkkuwait.com/uploaded_files/userfiles/files/can-you-hack-coin-master_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_off00004b1c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B1C	24256 bytes
SHA-256: `ba368cb1ab14b1791d6e6e45bdf29835bfe834eafcef2de2ad9fd12045eb8571`
`font_01_sfnt_off0000828f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x828F	18380 bytes
SHA-256: `efeb633a255f694e9143164e38fbc02a49932135eee8eb13370ba450910523e4`

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