PDF malware analysis — malicious · 3eb8e0604d819283

MALICIOUS

PDF

44.7 KB Created: 2020-08-31 18:13:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 62073aece6303aec8b6f8d61cafab18b SHA-1: af9ae669c9733433253a8888c2c39783da886248 SHA-256: 3eb8e0604d819283594d8ff7999058f4d2ff21ce6d3ed6f2024be621878ec778

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://ttraff.link/pify?keyword=liver+disease+nice+guidelines, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to medical terms and the malicious URL, suggesting a lure to external content.

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.
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.
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://ttraff.link/pify?keyword=liver+disease+nice+guidelines
- https://static.usrfiles.com/ugd/538d67_c8dba1a3bf8642b3b0404c65bb7c2274.pdf
- https://static.usrfiles.com/ugd/3ce946_bcf7a28d87f544b4bc5c40f289198b59.pdf
- https://static.usrfiles.com/ugd/1a89c8_544412aa7e0b4791ba4aaedbb08bf6fe.pdf
- https://static.usrfiles.com/ugd/73c254_2da03cab08584f018338d504decf70ba.pdf
- https://static.usrfiles.com/ugd/7d21c0_c645ebc44ed64d989dbb623e56de571d.pdf
- https://cdn.shopify.com/s/files/1/0433/2398/1979/files/nugaju.pdf
- https://static.usrfiles.com/ugd/d2751c_77e29b805d664c31904a6f46a600de34.pdf
- https://static.usrfiles.com/ugd/1f6d71_6bdc7702c1e048f8b4e8ddbe67d6a093.pdf
- https://static.usrfiles.com/ugd/c3f88d_f1501c7bf66e4771ab1eb651ad8b608a.pdf
- https://static.usrfiles.com/ugd/fe83c3_24166735d6944f78b3d35c0ddf9eec45.pdf
- https://static.usrfiles.com/ugd/b8c837_ca9457cc5666422eb9b1e19050ef0c05.pdf
- https://static.usrfiles.com/ugd/e4ff69_980f40002c0c4816bbf0386f5dddd3fe.pdf
- https://static.usrfiles.com/ugd/eb4c03_868939375ed64bd6a9003e8e10d0b9e6.pdf
- https://static.usrfiles.com/ugd/451a43_f7c591ed252a4b138e3472310ef177a9.pdf
- https://static.usrfiles.com/ugd/469aea_ed89cb7d53ab4f1b956f33411de4369e.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000071f3.bin` `89abd0b7246a3e491beac5c592b39ac568272f34ec34941594b7a2a220ccc1cf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71F3	5108 bytes
`font_01_sfnt_off0000836b.bin` `04abd951c7defef73239b5bdee8196eb0b451517c3caa154ecd6febcffb25eb7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x836B	10068 bytes

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