PDF malware analysis — malicious · 1ff2d3b426385fd5

MALICIOUS

PDF

44.5 KB Created: 2021-05-10 19:03:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: f1982fccdf3703530bfe582c80c0f4fb SHA-1: 50c74c05d5809fb0f2790fe3e4965760aeaf455f SHA-256: 1ff2d3b426385fd562eae54cc1ec3449d9affa160582b17c78208a91b21dac41

100 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains embedded links to known malicious redirector infrastructure, specifically targeting a game mod download. The presence of a visual download button further supports the lure. While no scripts were explicitly extracted, the PDF structure and malicious links suggest it is designed to trick users into downloading potentially harmful files, likely leading to further exploitation.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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/coin-master-mod-version-free-download-3.4-4-game-hack In PDF document text
- https://htdvn.com/public/upload/files/haktuts-2021-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-apk-hack_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-admin-hack_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/how-to-get-more-robux_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-download_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/free-robux-today_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/robux-generator-no-survey_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
- https://htdvn.com/public/upload/files/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://htdvn.com/public/upload/files/minecraft-linux-free_GM479516143.pdfIn PDF document text
- https://htdvn.com/public/upload/files/coin-master-daily-free-spins-link_GM406889139.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_off00004965.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4965	24076 bytes
SHA-256: `edacb01da7375f1d8b6d6ddac188e1a59a1c6a8927aa3e774cd0d984ecbdbcf7`
`font_01_sfnt_off00007fdf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FDF	2920 bytes
SHA-256: `601c50867a41b9362538ff18e5f9479a0f9badf698aaf1eb7e88469c11719db7`
`font_02_sfnt_off000089f8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89F8	18728 bytes
SHA-256: `ad22a82d8b3233edb38f402cd3e5013c6375fd48aabf823ea78d744f504abdc7`

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