Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c6b06d7cc6d1820…

MALICIOUS

PDF

41.6 KB Created: 2020-08-21 01:04:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a5f217a232ebf60566cad8dc9e2aea3 SHA-1: 334d5ed3f8ba97eb0d1e4b932bd681f698da7fd3 SHA-256: 1c6b06d7cc6d182034deb560db4022c8cf03f9ea459065427db7ea65f38f35f9
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is designed to obscure the final destination. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to drive traffic to this redirector. No scripts were extracted, limiting further analysis of payload delivery.

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.cc/pify?keyword=glueless+sheet+vinyl+flooring+adhesive
    • http://files.goldenpointpartners.com/uploads/1/3/1/3/131380279/subovi.pdf
    • http://fumadife.jackiemontes.com/uploads/1/3/0/8/130814328/a4b8b.pdf
    • https://cdn.shopify.com/s/files/1/0431/8255/5297/files/brocade_network_advisor_14._2.pdf
    • https://cdn.shopify.com/s/files/1/0434/2090/9733/files/80721704705.pdf
    • https://cdn.shopify.com/s/files/1/0432/2508/8168/files/auto_tune_8._1.pdf
    • https://cdn.shopify.com/s/files/1/0451/0262/9016/files/vector_calculus_6th_edition_marsden.pdf
    • https://cdn.shopify.com/s/files/1/0434/7405/9430/files/balancing_chemical_word_equations_worksheet_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0429/3469/8147/files/31706182775.pdf
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/87834711918.pdf
    • https://cdn.shopify.com/s/files/1/0433/6690/8065/files/calculus_of_variations_elsgolc.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/96989945255.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_off0000646d.bin
7d2e6d80e9fec25be3585ba1198492d6affea0c1fd4ff5ae3ba60396c30b856d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x646D 5364 bytes
font_01_sfnt_off000076b2.bin
60a7a53da0f815f2f5b876cbc150517e2eda1fd0a9ae900de6b97064f5a4528d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76B2 10288 bytes

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