PDF malware analysis — malicious · 20534e4d13703345

MALICIOUS

PDF

63.5 KB Created: 2020-08-29 20:54:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 945b458f63323d478bbe5bb1cc193e91 SHA-1: 831d0b9b4406b448fa8b2949a7a4967d1042902d SHA-256: 20534e4d137033452ee1727803f184076554a768fbbaa20cad498a9d590e9a63

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 external PDF files hosted on Shopify. One of these links, https://ttraff.ru/wix?keyword=largest+railways+in+world, is flagged as a known malicious redirector. This suggests the document is part of a link farm designed to drive traffic to malicious infrastructure, likely for further exploitation or phishing.

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.ru/wix?keyword=largest+railways+in+world
- https://cdn.shopify.com/s/files/1/0428/9242/7430/files/1667678778.pdf
- https://cdn.shopify.com/s/files/1/0433/6497/4742/files/25412839602.pdf
- https://cdn.shopify.com/s/files/1/0434/0314/9477/files/76913527728.pdf
- https://cdn.shopify.com/s/files/1/0427/5427/7532/files/.pdf
- https://static.usrfiles.com/ugd/b8c837_114f6fa836b74e938d7a4e247ad61e08.pdf
- https://static.usrfiles.com/ugd/b8c837_202350c6c4b54632af88f8da9d74f51a.pdf
- https://static.usrfiles.com/ugd/cafc24_74986166a969418891d430c11228aec5.pdf
- https://static.usrfiles.com/ugd/b8c837_6f4e713ba6c54bd5b425813e8a49d5f6.pdf
- https://static.usrfiles.com/ugd/edb4a7_1f42cfb35fa94da8943e3fd8cea0bedd.pdf
- https://cdn.shopify.com/s/files/1/0431/0230/6468/files/15494964647.pdf
- https://cdn.shopify.com/s/files/1/0438/3778/4224/files/stellaris_planet_names.pdf
- https://cdn.shopify.com/s/files/1/0431/2432/6566/files/english_arabic_technical_dictionary.pdf
- https://cdn.shopify.com/s/files/1/0433/6920/1832/files/bistable_multivibrator_using_transistor.pdf
- https://cdn.shopify.com/s/files/1/0427/9618/7815/files/4610_ford_tractor.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007e10.bin` `2ffda10ad03463f19a3eabc838b10f49ed1b3b884aa16bd8a85b1c2a9e8cd37a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E10	5032 bytes
`font_01_sfnt_off00008f7b.bin` `711ac1671563c596fde57743db5e0de67165cd186d1bb1ddad5f61cee5e8e2e8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F7B	5128 bytes
`font_02_sfnt_off0000a10f.bin` `51fd3b36ef542f843ec4b90ec83865d1e3e1b914c69bb034673cdc88699d020a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA10F	14872 bytes
`font_03_sfnt_off0000cf9f.bin` `64f5f6a4f777597c4dabb78f8ed3736e5523f7529da7d3d3f2190b5947ece392`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCF9F	19672 bytes

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