Malicious PDF — malware analysis report

Static analysis result for SHA-256 f66d64f3162b95d0…

MALICIOUS

PDF

53.5 KB Created: 2020-08-12 03:08:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 05b2502a159359ddba929a2e5f102d2e SHA-1: 4c0b75900babbb3bf238159f23dad071c4b5ff32 SHA-256: f66d64f3162b95d0a48770743db9c02a6dc0d4751670549acc3adaa86bb432e3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. This URL is embedded within the document body, disguised as a marketing PDF related to Maslow's hierarchy of needs. The PDF also exhibits characteristics of a link farm, with numerous external links, many hosted on Shopify. The ML classifier strongly indicates maliciousness. The primary attack vector appears to be directing users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=pyramide+des+besoins+de+maslow+marketing+pdf In PDF document text
    • http://files.cyberedchristianschool.org/uploads/1/3/0/8/130873826/2411584.pdfIn PDF document text
    • http://files.michelleveixmccartan.com/uploads/1/3/0/8/130813885/tilosusekamozamamogi.pdfIn PDF document text
    • http://files.vedanza.com/uploads/1/3/0/9/130969987/sozobugina-xomefirexosa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7651/8049/files/wulopitesowurok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0633/4888/files/mutojot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2427/7923/files/49429777687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0181/3915/files/95658231551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6988/8917/files/divi_mobile_logo_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2737/3990/files/snmptrapd_conf_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4813/2008/files/51731964314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/9579/1518/files/roll20_spell_macros_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8205/5842/files/96059556361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4126/6587/files/capitalism_vs_socialism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1023/6314/files/57957016228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/41076521502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8837/1107/files/fofilixenujunowukal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6416/4506/files/soxuzavi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6110/9155/files/88242996205.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75EC 5760 bytes
SHA-256: 81f963c85a65afdfee666f0689d41670fb813d32cf00d90c61c727c956183d41
font_01_sfnt_off00008982.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8982 11912 bytes
SHA-256: b28a0007c10f6e2c83ee45e0573c135801dd9f0db8c8b985b2b21d5508cda916
font_02_sfnt_off0000aecc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAECC 16756 bytes
SHA-256: 2660e3f19262e0c1c514f7a0045fa503cee1831b49ccf21a997877b0058606e8