PDF malware analysis — malicious · 402aaa966fb8f862

MALICIOUS

PDF

45.5 KB Created: 2021-05-12 07:17:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 9860cb442598ba3b6720ffa8a094d8f8 SHA-1: 60d1ed5347cb0d3f0c8791a6c391c447dc8a7393 SHA-256: 402aaa966fb8f862e78e7f7eca1b573135101f0b93540017c277f758812fc4d2

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous external links, many of which are structured as a link farm for SEO purposes, pointing to other PDF files. The primary URL, https://netcdn.xyz/app/431946152/mathep-game-hack, suggests a lure for game-related exploits or cheats. The presence of a 'download button' heuristic further supports the malicious intent of tricking users into downloading content. While no scripts were explicitly extracted, the PDF structure and extensive external linking are indicative of a malicious document designed to redirect users to potentially harmful resources.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/mathep-game-hack
- https://amozeshportal.ir/assets/uploads/pages/files/free-robux-no-human-verification-2021_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/minecraft-pocket-edition-free-ios_GM479516143.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/minecraft-svg-images-free_GM479516143.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/robux-get-com_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/minecraft-survival-hacks_GM479516143.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/how-to-hack-a-minecraft-server_GM479516143.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/coin-master-free-spin-daily-link_GM406889139.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/can-you-really-hack-coin-master-ios_GM406889139.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/minecraft-pe-free-download-android_GM479516143.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/how-to-hack-in-roblox-prison-life_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/free-robux-no-verification-2021_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/how-to-hack-roblox-to-get-robux_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/robux-no-verification_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/get-me-free-robux_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/how-to-hack-roblox-jailbreak_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/blogspot-coin-master-free-spins_GM406889139.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/coin-master-free-spins-daily-link-game-mod_GM406889139.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/roblox-sexually_GM431946152.pdf
- https://amozeshportal.ir/assets/uploads/pages/files/how-do-i-get-robux_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000050e9.bin` `9e9428aedeac1d851d70bf027ee20f768f8661b213cf4389fcfab1d31eb4f82b`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50E9	27796 bytes
`font_01_sfnt_off00009081.bin` `2b3a9c081553d581a827df65dee23cc3b514f38b63125b20306762026e644864`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9081	18068 bytes

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