PDF malware analysis — malicious · 8e5e0b1c92bf9ba4

MALICIOUS

PDF

45.1 KB Created: 2020-08-31 06:51:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bfe59fddf5b5e48b02ebe02af3f30cb2 SHA-1: 7b1dc1f407c7f231ff6f550ebfa3bb3d8e2c97a7 SHA-256: 8e5e0b1c92bf9ba4fce43b59b8c0b71873dca6add3b4a4c354bda7dfb3d9f50c

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, pointing to 'ttraff.ru'. This URL is embedded within the document body, disguised as a search result for 'Eckhart Tolle practicing the power of now'. The PDF also contains a large number of external links, many of which are hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The ML classifier 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.ru/wix?keyword=eckhart+tolle+practicing+the+power+of+now
- https://cdn.shopify.com/s/files/1/0437/8827/1777/files/dubifitoterulesinasigugup.pdf
- https://cdn.shopify.com/s/files/1/0434/1815/7221/files/os_capites_da_areia.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20011772627.pdf
- https://cdn.shopify.com/s/files/1/0457/6709/8534/files/24610981722.pdf
- https://cdn.shopify.com/s/files/1/0432/6447/5304/files/3._5_forgotten_realms_campaign_setting.pdf
- https://cdn.shopify.com/s/files/1/0429/0812/3303/files/49846873983.pdf
- https://cdn.shopify.com/s/files/1/0435/6649/7960/files/78181750238.pdf
- https://cdn.shopify.com/s/files/1/0437/5671/6186/files/diffusion_and_osmosis_lab_answer_key.pdf
- https://cdn.shopify.com/s/files/1/0440/1243/7662/files/mokizotebivodanawi.pdf
- https://cdn.shopify.com/s/files/1/0434/8300/5078/files/liboze.pdf
- https://cdn.shopify.com/s/files/1/0432/2033/6802/files/16835219890.pdf
- https://cdn.shopify.com/s/files/1/0429/7120/1699/files/utopia_origin_guide_fishing.pdf
- https://static.usrfiles.com/ugd/b8c837_97d3df522ca3497f83e214402bf74fbb.pdf
- https://static.usrfiles.com/ugd/b50c55_3eef8e506dce4f16a7e258f71a7f86fd.pdf
- https://static.usrfiles.com/ugd/b8c837_9e034a549c214af7834858400ab585ea.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000063de.bin` `9665647baca8b41d4a9643b733a0a36a52f32b1e85a07ac7c94348b1ff559827`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63DE	5000 bytes
`font_01_sfnt_off000074e8.bin` `262f9752e2f07c979d03e70c96d7c3adf057872aa9621bbd7a7ebae3a6d802dd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x74E8	10572 bytes
`font_02_sfnt_off00009924.bin` `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9924	4324 bytes

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