Malicious PDF — malware analysis report

Static analysis result for SHA-256 93ee09315a1f8132…

MALICIOUS

PDF

50.8 KB Created: 2020-09-15 10:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 880736a6cc58d5cef9c962dc63dcd219 SHA-1: d43eb4263e97adcc5f281c224ca8e641f5606e04 SHA-256: 93ee09315a1f8132caf86df17f77865a30dfa0bc6c18e844c229e07d324fc962
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used for SEO poisoning or to create link farms. One of the primary embedded URLs, 'https://ttraff.cc/wb?keyword=pasion%20de%20cristo%20actor', is flagged as a malicious redirector. This suggests the document's purpose is to lure users to malicious sites, likely for phishing or to download further malware. The presence of numerous Shopify-hosted PDF links, while individually benign, contributes to the overall link farm strategy.

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/wb?keyword=pasion%20de%20cristo%20actor
    • https://cdn.shopify.com/s/files/1/0432/2715/2539/files/ccris_report_akpk.pdf
    • https://cdn.shopify.com/s/files/1/0440/1519/0181/files/81280893766.pdf
    • https://cdn.shopify.com/s/files/1/0438/1566/5824/files/24716195838.pdf
    • https://static.usrfiles.com/ugd/ce0e6d_b677057b14064834bf296335bbadcf08.pdf
    • https://static.usrfiles.com/ugd/2994dd_9cb10ef890ce4b3b8a6bd4a98c119245.pdf
    • https://static.usrfiles.com/ugd/ac0094_f2049bc21d424f9191d9fe3372303186.pdf
    • https://cdn.shopify.com/s/files/1/0431/8471/7979/files/13648786645.pdf
    • https://cdn.shopify.com/s/files/1/0432/1673/2315/files/89351010224.pdf
    • https://cdn.shopify.com/s/files/1/0430/9424/5525/files/85607674323.pdf
    • https://cdn.shopify.com/s/files/1/0431/7757/4557/files/redfish_fishing_report_venice_la.pdf
    • https://cdn.shopify.com/s/files/1/0463/2051/7282/files/xijuxowuxeni.pdf
    • https://cdn.shopify.com/s/files/1/0427/3537/0407/files/best_sites_to_movies_without_utorrent.pdf
    • https://cdn.shopify.com/s/files/1/0462/5383/4394/files/avicularia_avicularia_breeding_report.pdf
    • https://cdn.shopify.com/s/files/1/0437/6897/1421/files/46198789345.pdf
    • https://cdn.shopify.com/s/files/1/0463/8084/3163/files/employment_insurance_canada_report.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_off00008743.bin
6e9dcd80c721f01dcabe7f9c6880ff49603b2809600db612adc67db2407c4e04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8743 4900 bytes
font_01_sfnt_off000097fa.bin
0567d8a895cf8936b7b25c207c6453bd31381011f0181f5c42fba89f353c880a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97FA 11368 bytes

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