PDF malware analysis — malicious · 4972a5021dc54509

MALICIOUS

PDF

42.1 KB Created: 2020-08-01 22:45:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c3eb9c7543d3ab95e9e701004333f7b5 SHA-1: eb73a122d57f72f6497a6fec811cc2cc5e34950a SHA-256: 4972a5021dc545096547603b97626d33f0741471bb328289b7c76fe03921e972

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The embedded URLs, particularly the one pointing to 'ttraff.ru', suggest an attempt to redirect users to malicious content. The presence of numerous Shopify-hosted PDF links indicates a strategy to create a large, potentially deceptive, link farm.

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/pify?keyword=minecraft+can+you+tame+a+polar+bear
- http://files.shipshapetipsboatbulidingandrepairs.com/uploads/1/3/0/7/130740521/mejutus.pdf
- http://files.klbavarianwaxart.com/uploads/1/3/1/8/131856713/0e35d0df837e.pdf
- http://files.slcwrestling.com/uploads/1/3/1/4/131406610/lopozijowaloge.pdf
- http://files.seoulvibephangan.com/uploads/1/3/1/4/131453252/begejo-kupugumijo-pexorelifip.pdf
- https://cdn.shopify.com/s/files/1/0431/5735/6710/files/torofonake.pdf
- https://cdn.shopify.com/s/files/1/0432/5552/9640/files/lemokok.pdf
- https://cdn.shopify.com/s/files/1/0427/5778/3718/files/rivuzepelivasitini.pdf
- https://cdn.shopify.com/s/files/1/0427/9799/0055/files/18397079299.pdf
- https://cdn.shopify.com/s/files/1/0434/7399/3890/files/ruzogidabojonakav.pdf
- https://cdn.shopify.com/s/files/1/0434/6213/1869/files/sidiwanozumawa.pdf
- https://cdn.shopify.com/s/files/1/0431/9232/0161/files/gurejuwodofujapow.pdf
- https://cdn.shopify.com/s/files/1/0437/0225/5770/files/23520495980.pdf
- https://cdn.shopify.com/s/files/1/0428/5349/9046/files/runajun.pdf
- https://cdn.shopify.com/s/files/1/0431/1855/9393/files/vixovujiwurowapupovura.pdf
- https://cdn.shopify.com/s/files/1/0429/5429/3402/files/poniwul.pdf
- https://cdn.shopify.com/s/files/1/0430/8143/3242/files/lovobula.pdf
- https://cdn.shopify.com/s/files/1/0438/4718/8640/files/lawaguwamid.pdf
- https://cdn.shopify.com/s/files/1/0437/3453/2245/files/pibomolexawexoselexoveku.pdf
- https://cdn.shopify.com/s/files/1/0433/7618/1400/files/ranorufuxovozexesuro.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_off000066ed.bin` `60d102f24e53de279f642c0e98d986a3369d0befbffed1ab2e8e88dda1c626bb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66ED	5228 bytes
`font_01_sfnt_off000078b6.bin` `5eca3c58e7f6e0cac0131c659c1fb3bf26c293d1933f26655396b7e3d264669b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x78B6	10040 bytes

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