PDF malware analysis — malicious · 9d5492bd7c423008

MALICIOUS

PDF

37.1 KB Created: 2020-08-29 09:28:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bf449f6c43c25a04d02afa6f5f9da8af SHA-1: 0acbe117c0d0119bdaa3478c7e87e14133f304c1 SHA-256: 9d5492bd7c4230081aaed011235c74ada8a3d3a6d2c23235d98ad84ecce3a408

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/wix?keyword=un+vecino+infernal+2+descargar', is designed to redirect users to malicious content. The presence of a PDF link farm heuristic further suggests an attempt to distribute malicious content or engage in SEO manipulation for phishing purposes. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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.cc/wix?keyword=un+vecino+infernal+2+descargar
- https://static.usrfiles.com/ugd/b8c837_56f9e3dc007b4eee92cd0441266ca5ea.pdf
- https://static.usrfiles.com/ugd/b8c837_4fc2234b709f4f27853e5153b6013a2b.pdf
- https://static.usrfiles.com/ugd/b8c837_5769e1b7c6f04deabef1f2ef0e60a801.pdf
- https://cdn.shopify.com/s/files/1/0430/3929/3589/files/zipine.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pesaveput.pdf
- https://cdn.shopify.com/s/files/1/0436/5120/3225/files/39045508247.pdf
- https://cdn.shopify.com/s/files/1/0434/6413/0726/files/51095719770.pdf
- https://cdn.shopify.com/s/files/1/0437/9358/0181/files/aoac_official_method_996._06.pdf
- https://static.usrfiles.com/ugd/b8c837_21485fa6f9214a2188425a7cfd558307.pdf
- https://static.usrfiles.com/ugd/b8c837_900e578656124c4381eb5500e85ce376.pdf
- https://static.usrfiles.com/ugd/b8c837_956b4bcb422545049caddb2fe0b7163f.pdf
- https://static.usrfiles.com/ugd/b8c837_4c29e3d0697846adb9f06de7e5baf2bc.pdf
- https://static.usrfiles.com/ugd/b8c837_2980f03b62a040bf9d78b0240be816ca.pdf
- https://static.usrfiles.com/ugd/b8c837_33bf9ed1604e491bbb328ac403b7ec51.pdf
- https://static.usrfiles.com/ugd/b8c837_0914cf91d1d74eb097ffca1d1712fcdc.pdf
- https://static.usrfiles.com/ugd/b8c837_363c9afafdc34a44a13dc7e47a33af43.pdf
- https://static.usrfiles.com/ugd/b8c837_1ab7aa43f7d349649b9810f4c1f2a2e6.pdf
- https://static.usrfiles.com/ugd/b8c837_94d27aa776bf44f5a4c7e6f533809d00.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_off00005040.bin` `56665befabf4cfc80a8f0cbbe9e9466e8ee6ca4eb7b85b37dd7bd46f4f8dbe89`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5040	5372 bytes
`font_01_sfnt_off00006297.bin` `1ed2fbd0991b7aec9c130db61d81ce8f4c35abea84eadedd8b8d76df7e9cec39`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6297	11308 bytes

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