Malicious PDF — malware analysis report

Static analysis result for SHA-256 77fea03bcb65e14b…

MALICIOUS

PDF

49.5 KB Created: 2020-08-31 12:19:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 939084444cce183a196e130cefd69c46 SHA-1: 15e73c06fbc9f370e54645435f9f7c4e8d115aea SHA-256: 77fea03bcb65e14b6672728b4c5cba6aa2f983f8785988ae1b7b60d0ff20cd7d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to PDF files hosted on Shopify. One of these links, https://ttraff.com/wix?keyword=5+fleuves+de+france, is identified as a known malicious redirector. This suggests a link farm or SEO poisoning attack designed to lure users to malicious content. The document body itself is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf.

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/wix?keyword=5+fleuves+de+france
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/pominunujinuti.pdf
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/nifirudufebitemafirafux.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/xitanibaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/nisitimisedovanovexejunaw.pdf
    • https://cdn.shopify.com/s/files/1/0437/5461/9041/files/12948815386.pdf
    • https://cdn.shopify.com/s/files/1/0435/7554/1919/files/deutsches_arbeitszeitgesetz.pdf
    • https://cdn.shopify.com/s/files/1/0431/7095/5424/files/carmina_burana_o_fortuna_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0437/6074/6648/files/ctet_answer_key_2020.pdf
    • https://cdn.shopify.com/s/files/1/0432/9750/5435/files/informacion_catastral_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0447/6986/9975/files/ielts_on_track_academic_reading_test_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/3828/5725/files/90687994213.pdf
    • https://cdn.shopify.com/s/files/1/0430/3349/3655/files/ririxorozarik.pdf
    • https://static.usrfiles.com/ugd/b8c837_c4f4ad8a7f1045a68f72f7509879d609.pdf
    • https://static.usrfiles.com/ugd/b8c837_6477cf545f694567a7980cc4a6bc81e6.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_off00007516.bin
8bf471b43dda6ed55a5dfcc0eee9eab7180b44f3a8968fb7b81cfb37ba176f6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7516 5104 bytes
font_01_sfnt_off0000867c.bin
83899b51e26870fa31ab8e0499b8057464348f89d3ecdf894e617615472e08a7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x867C 16984 bytes

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