Malicious PDF — malware analysis report

Static analysis result for SHA-256 4adf65a12a321b69…

MALICIOUS

PDF

36.2 KB Created: 2020-08-15 06:02:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 985c4091478f97fbdc5ce86837eb2ab3 SHA-1: e35205ad6ed34e3b269edd37100b1708e8ec3413 SHA-256: 4adf65a12a321b694138e6eedced2f7b2db076ea2bbf92f899c02811ef851d70
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of these links, found in the document body and also flagged by heuristics, redirects to `https://ttraff.com/wb?keyword=the%20homoeopathy%20central%20council%20act%201973%20pdf`, which is identified as malicious redirector infrastructure. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or to download further malware.

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/wb?keyword=the%20homoeopathy%20central%20council%20act%201973%20pdf
    • http://files.eternalskytravel.com/uploads/1/3/1/3/131384113/5611582.pdf
    • http://files.brockeastman.com/uploads/1/3/1/3/131381976/dutizomesajun.pdf
    • http://files.makomath.com/uploads/1/3/1/4/131408204/8327886.pdf
    • https://cdn.shopify.com/s/files/1/0433/7070/9142/files/32073722357.pdf
    • https://cdn.shopify.com/s/files/1/0432/3577/0535/files/busedutuxavaxafolugepaza.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/81302298061.pdf
    • https://cdn.shopify.com/s/files/1/0434/1222/6200/files/valid_address_in_usa.pdf
    • https://cdn.shopify.com/s/files/1/0437/2758/5445/files/fingersmith_sarah_waters.pdf
    • https://cdn.shopify.com/s/files/1/0431/1960/7962/files/zetegidaxuma.pdf
    • https://cdn.shopify.com/s/files/1/0430/9729/2967/files/woferobisujimoperuneveba.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/setikefopotogu.pdf
    • https://cdn.shopify.com/s/files/1/0435/8465/1423/files/22261308589.pdf
    • https://cdn.shopify.com/s/files/1/0435/0817/0918/files/95871732478.pdf
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/delete_a_retweet.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.

FilenameKindSourceSize
font_00_sfnt_off00004e62.bin
46286942e0d845d03a038e1dd93c105578b28b3412586741b5f723f1c0044dc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E62 5720 bytes
font_01_sfnt_off000061c8.bin
1d6f4c2db8b3c9e75803cd8a917643c3b91cb5a105b565ab875298a08bfd5a13		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C8 9860 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.