Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9f9633ee5273e1…

MALICIOUS

PDF

40.8 KB Created: 2020-08-18 21:45:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 56e871545be6267159c05471d81b8670 SHA-1: 2cf94e619f904e3ff649c510fd0d1be61024bbf2 SHA-256: ae9f9633ee5273e14a597ec14669da543f9897ea24beede6d2067d6f673b1228
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, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link at 'https://ttraff.ru/pify?keyword=blacklight+retribution+ps4+cross+platform' points to known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic suggests a large number of external links are present, likely to lure users to malicious sites. No scripts were extracted from this sample.

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=blacklight+retribution+ps4+cross+platform
    • http://kifedu.darlingtonlecture.org.uk/uploads/1/3/1/4/131483598/jomogepobamo.pdf
    • http://files.desireejade.com/uploads/1/3/2/7/132712163/bovedag.pdf
    • http://files.harrisallen.org/uploads/1/3/1/6/131637108/05d14a33252.pdf
    • https://cdn.shopify.com/s/files/1/0432/8570/8953/files/xatun.pdf
    • https://cdn.shopify.com/s/files/1/0447/9772/2785/files/jurnal_nasional_budaya_organisasi.pdf
    • https://cdn.shopify.com/s/files/1/0432/4258/6269/files/changing_polar_form_to_cartesian_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/9766/1348/files/37338445982.pdf
    • https://cdn.shopify.com/s/files/1/0427/7128/4135/files/marguerite_duras_the_lover_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/8345/4871/files/sixokujapimukesolo.pdf
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/dezitugalipepofix.pdf
    • https://cdn.shopify.com/s/files/1/0433/8299/7148/files/excel_data_entry.pdf
    • https://cdn.shopify.com/s/files/1/0433/2906/1032/files/tawodop.pdf
    • https://cdn.shopify.com/s/files/1/0430/0098/7811/files/bestiario_juan_jose_arreola.pdf
    • https://cdn.shopify.com/s/files/1/0437/4164/2906/files/11205634774.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_off00006147.bin
e6f1e4e7635436e82072cd3cd6da573c8221d09181589aa097cff749cb430bc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6147 5768 bytes
font_01_sfnt_off000074c4.bin
43e0aa3550b5121f3e20441c0a20e7cb11a14d1d867c920562a23615db463635		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74C4 9868 bytes

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