Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6388d2dea467bc…

MALICIOUS

PDF

52.3 KB Created: 2020-08-25 03:17:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8d5daf6803396d1a89fb692ab9f6a20 SHA-1: e8c703376a8ee451d8f05ef9e5b7fad12174de27 SHA-256: af6388d2dea467bcfbd83b617c322fa6bce273cacb305af6ba0e280c2a204121
150 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a high number of embedded external links, a technique often used to create link farms for SEO manipulation or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=query+google+sheets'. The document body also contains this URL, reinforcing its role in the attack. The presence of numerous shopify.com links, while some are confirmed benign, suggests an attempt to blend malicious links with legitimate ones.

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/pify?keyword=query+google+sheets
    • http://wetafinaf.wtd-peru.org/uploads/1/3/1/1/131164250/292b5279.pdf
    • http://zegeru.gktfreechurch.com/uploads/1/3/1/6/131637881/6761200.pdf
    • http://files.cliqueticketproject.com/uploads/1/3/1/6/131606345/tukajewebaxotiz.pdf
    • http://zegeru.gktfreechurch.com/uplo
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/lp_stemi_anteroseptal.pdf
    • https://cdn.shopify.com/s/files/1/0435/6590/8136/files/gisojixunulesagoterewu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4617/3852/files/28112418106.pdf
    • https://cdn.shopify.com/s/files/1/0437/6795/5610/files/jifikekakogewok.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5897/files/xulosopofegutonuruma.pdf
    • https://cdn.shopify.com/s/files/1/0427/8855/2870/files/complete_list_of_root_words_in_english.pdf
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/22542597882.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_off00008fd3.bin
611c3de1af3b6c29444ee72eee590f5a8d8f489b03107467261912fdc32e28d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD3 4900 bytes
font_01_sfnt_off0000a088.bin
5381c76e193e45e57bd4a6f4902917700acfdca6add2ddaf79a35284ea29f32f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA088 10588 bytes

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