Malicious PDF — malware analysis report

Static analysis result for SHA-256 290c3a4e5ca38462…

MALICIOUS

PDF

41.0 KB Created: 2020-08-24 00:16:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92d8610acf9f6e4df4f8f1b720233b47 SHA-1: 32e272670970e2b6b8bad433d5e43cf292aabfb7 SHA-256: 290c3a4e5ca38462c3eb8635d88f0f634c5587c1aaf811391743e5df30bd11a0
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'warranty deed forms florida' and embeds numerous links. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'https://ttraff.ru/pify?keyword=warranty+deed+forms+florida'. Another heuristic flags it as a PDF link farm, with many links pointing to Shopify domains, likely for SEO manipulation or to host further malicious content. The document body, though partially garbled, contains the lure text and the malicious URL.

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=warranty+deed+forms+florida
    • http://files.mpsplumbingandtraining.com/uploads/1/3/1/6/131606227/sotekemovinoris_gojugizelibew_nefexu_wakenevumewetu.pdf
    • http://files.the-crib.org/uploads/1/3/0/8/130814342/rigerofu-lidemanejomu-zasesura.pdf
    • https://cdn.shopify.com/s/files/1/0433/5216/2462/files/access_consciousness_bars_points.pdf
    • https://cdn.shopify.com/s/files/1/0447/0639/8364/files/82688880508.pdf
    • https://cdn.shopify.com/s/files/1/0432/5670/9273/files/petumiwixitanolo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8301/3023/files/loading_screen_simulator_guide.pdf
    • https://cdn.shopify.com/s/files/1/0464/9323/7400/files/acknowledgement_form_of_income_tax_return.pdf
    • https://cdn.shopify.com/s/files/1/0451/9932/7383/files/context_clues_worksheet_for_high_school.pdf
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/88990434427.pdf
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/introduce_yourself_presentation_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/8556/8923/files/68184489299.pdf
    • https://cdn.shopify.com/s/files/1/0440/6811/0488/files/47960393804.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_off000063d8.bin
6554b6ebc3d5549605b032a0d7f29e70cf07c954b4a868f75398b6d75f9b013c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63D8 5168 bytes
font_01_sfnt_off00007567.bin
acc502f824c1fc3e20d8d71c7531e4578871b7129147ec73e41b71a6857997a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7567 9964 bytes

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