PDF malware analysis — malicious · ac997814dae03fd9

MALICIOUS

PDF

50.4 KB Created: 2021-05-12 23:31:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c02f51bc4d498195daeb57a45278eb0d SHA-1: ba4276d05534f44b24bd50b530c706a5a0346da2 SHA-256: ac997814dae03fd93dd2d533e34c003b87bc0aef96533841426a10a905319af3

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are hosted on `theecobuild.com` and point to files promising game hacks. The document body also contains a direct link to `netcdn.xyz` with a similar lure. This suggests a link farm or phishing campaign designed to redirect users to potentially malicious content or exploit kits. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.8594

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/406889139/como-hackear-coin-master-ios-game-hack
- https://www.theecobuild.com/uploaded_files/userfiles/files/free-robux-hack_GM431946152.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/free-coins-for-coin-master_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/coin-master-free-spins-promo-code_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/completed-coin-master-hack_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/coin-master-free-spins-app-for-iphone_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/free-robux-no-verify-2021_GM431946152.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/coin-master-free-spin-link-daily_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/coin-master-hack-ios-download_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/roblox-no-download-hack_GM431946152.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/roblox-ban_GM431946152.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/mine-minecraft-games-for-free_GM479516143.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/coin-master-free-coins-amp_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdf
- https://www.theecobuild.com/uploaded_files/userfiles/files/free-robux-generator-without-verification_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004fc3.bin` `da0994c74f38fbb0385985c660b5f7101d6952e0c281a0d522f4566e36a09747`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4FC3	24652 bytes
`font_01_sfnt_off00008825.bin` `00a7cf8e3d0735628b8cfb54649aa0d9114f13ea56ee9743afe6149edd61eaf7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8825	5272 bytes
`font_02_sfnt_off00009967.bin` `6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9967	2788 bytes
`font_03_sfnt_off0000a356.bin` `c17a11528d6db3e3ae92482534db384e3139a2f0aff777cff95d74958b5837df`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA356	17976 bytes

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