PDF malware analysis — malicious · 1fc51a84d3a18802

MALICIOUS

PDF

46.2 KB Created: 2020-08-07 08:30:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ffe71d569f4731d92cfd7fc97ff08e85 SHA-1: d876fa051c2ada57a35c2ff78f72c7a851a1d100 SHA-256: 1fc51a84d3a18802f9ef9edce0bae095df315d807c4e6f028d0ba37d5be448b2

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru', which is likely the primary malicious payload delivery mechanism. The document body text, though partially corrupted, includes the same lure text as the malicious redirector URL, indicating a coordinated social engineering effort.

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/wb?keyword=sinbad%20the%20sailor%20story%20with%20pictures%20pdf
- http://files.museumtrustee.org/uploads/1/3/0/8/130813757/fugole-dudanalenoxum-numotise-pawuxanobopivi.pdf
- http://miwoj.snackscast.com/uploads/1/3/1/4/131453247/famiperemofetunox.pdf
- http://files.ancestorscouture.com/uploads/1/3/0/7/130775180/nuredozoti.pdf
- http://files.nvgws.com/uploads/1/3/0/8/130814674/watirepaduxisezusofi.pdf
- http://files.museumtrustee.org/uploads/1
- https://cdn.shopify.com/s/files/1/0432/0228/1633/files/vomokene.pdf
- https://cdn.shopify.com/s/files/1/0435/6482/6783/files/kinava.pdf
- https://cdn.shopify.com/s/files/1/0437/3394/2423/files/74205749255.pdf
- https://cdn.shopify.com/s/files/1/0431/0741/8273/files/cfop_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0432/6614/6472/files/gipokukifajuwumosaf.pdf
- https://cdn.shopify.com/s/files/1/0432/6552/3870/files/riwof.pdf
- https://cdn.shopify.com/s/files/1/0435/5493/0839/files/melojewojevojalov.pdf
- https://cdn.shopify.com/s/files/1/0430/3791/7345/files/80220368395.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jamitaribigonekadori.pdf
- https://cdn.shopify.com/s/files/1/0433/7424/8101/files/botej.pdf
- https://cdn.shopify.com/s/files/1/0431/3609/0273/files/52347120395.pdf
- https://cdn.shopify.com/s/files/1/0429/0081/6028/files/cub_cadet_gt2550.pdf
- https://cdn.shopify.com/s/files/1/0432/5444/8286/files/wusixapegapajowedopejave.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_off0000759f.bin` `7697d3b31864b43f6f54020e657b1697b56a72c592a778437e1a802a81d0a8cd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x759F	5680 bytes
`font_01_sfnt_off00008903.bin` `b20381f67109c8da3fdea5dca85d5ce086348181d0abb51161b27fc01800b7f6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8903	9976 bytes

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