PDF malware analysis — malicious · 23053127592f461e

MALICIOUS

PDF

47.2 KB Created: 2021-06-03 11:12:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 2dec100b2c25d43d93b92572d6f217a9 SHA-1: bfde9d58346f2e2a5196ba6ff4042509d688589b SHA-256: 23053127592f461e3d06b693dd279023286ef120e1a177d40deb32f5737cce0c

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, many of which point to SEO-optimized PDF files hosted on external domains, suggesting a link farm or content stuffing tactic. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick users into clicking links. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

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.online/app/479516143/how-to-get-java-minecraft-for-free-game-hack
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/pokemon-go-free-gyarados_GM1094591345.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/get-free-spins-on-coin-master_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/minecraft-free-download-pc_GM479516143.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-youthnow_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-hack-online-link_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-coin-master-hack-no-verification_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-free-coins_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-and-coins-for-iphone_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/roblox-hack-download-pc_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/roblox-script-hack_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-links-for-coin-master_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-hack-free-spins_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/earn-free-robux-for-roblox_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-link-today-2021_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-robux-generator-for-kids_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/robloxheroxyz-free-robux_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/minecraft-story-mode-free-download_GM479516143.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000056d7.bin` `9cda8ea0a6c1ab12ea311d5924db2d0b3150cee8c82b7389a475f6297c45f274`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x56D7	28952 bytes
`font_01_sfnt_off00009691.bin` `b07ca7cfd9f4df49e8124e55bb29c456f703fc5bdce85e2b26b96107911b04a3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9691	18152 bytes

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