PDF malware analysis — malicious · df02c5dbe74132e2

MALICIOUS

PDF

51.3 KB Created: 2020-08-19 20:05:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a7e37447c4574ddcc710bd5fb09c908d SHA-1: f7372c77371b9e4d8153d3e3aa6fdf489c586253 SHA-256: df02c5dbe74132e292e656d02c3bd3897437fc424733c5354b4e27433a092309

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link disguised as sports commentary. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK firing confirms that the embedded URL leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a link farm, likely for SEO poisoning or to distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.

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.com/pify?keyword=week+14+expert+picks+bleacher+report
- http://mitikelu.beneathawp.co.uk/uploads/1/3/0/7/130740434/ramajeti.pdf
- http://files.fuzzydude.com/uploads/1/3/0/7/130739718/romatomelunaj.pdf
- https://cdn.shopify.com/s/files/1/0431/1249/7313/files/danopatugol.pdf
- https://cdn.shopify.com/s/files/1/0431/0918/7750/files/pezes.pdf
- https://cdn.shopify.com/s/files/1/0432/8338/2427/files/kakevobavewimeludokexugi.pdf
- https://cdn.shopify.com/s/files/1/0438/1864/7709/files/libro_amigas_para_siempre.pdf
- https://cdn.shopify.com/s/files/1/0437/6444/9437/files/jojezedidakadunosobodi.pdf
- https://cdn.shopify.com/s/files/1/0434/8359/4917/files/volemala.pdf
- https://cdn.shopify.com/s/files/1/0429/8362/0757/files/89835509035.pdf
- https://cdn.shopify.com/s/files/1/0440/8508/4310/files/jotonekon.pdf
- https://cdn.shopify.com/s/files/1/0433/1739/5614/files/15749732493.pdf
- https://cdn.shopify.com/s/files/1/0434/6521/2066/files/uk_bribery_act_guidance.pdf
- https://cdn.shopify.com/s/files/1/0440/2076/0741/files/free_filler_paper_template.pdf
- https://cdn.shopify.com/s/files/1/0432/1122/7300/files/fubufunuxobewigojesog.pdf
- https://cdn.shopify.com/s/files/1/0432/2571/0756/files/1750919746.pdf
- https://cdn.shopify.com/s/files/1/0428/6673/7311/files/viwuromejofumemef.pdf
- https://cdn.shopify.com/s/files/1/0430/1602/8309/files/xejexirufiximexeper.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/
- https://cdn.shopify.com/s/files/1/0430/1602/8309/files/xejexirufi

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008b6b.bin` `5159c181543e193ba2d16bb165e2e844d84e24844310f29adb5af947d23bb568`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B6B	5448 bytes
`font_01_sfnt_off00009dfe.bin` `7f389460c9327b59186f5823f793ce108573bd3d119ff242f4a80b7c96408b1c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9DFE	9980 bytes

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