Malicious PDF — malware analysis report

Static analysis result for SHA-256 f102d6b8b9fb6291…

MALICIOUS

PDF

35.4 KB Created: 2020-08-12 12:28:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6f416d838fe6e065f74c37eecc8d304 SHA-1: 947c6948484b05c2c12d138d5cc79afc55d3996e SHA-256: f102d6b8b9fb6291d9e500e53b03dbe3097c09863f02ef72a861adbffd702e4f
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=auto+insurance+application+pdf'. The document body, though partially corrupted, contains text related to 'auto insurance application pdf', reinforcing the lure. The presence of a large number of embedded PDF links, many hosted on cdn.shopify.com, suggests a link farm used to obscure the malicious redirector.

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=auto+insurance+application+pdf In PDF document text
    • http://files.newfypoozoo.net/uploads/1/3/2/3/132302924/bacf41.pdfIn PDF document text
    • http://wazoxofa.lulalake.org/uploads/1/3/1/0/131069839/fevataxawa-takemelatemopej.pdfIn PDF document text
    • http://taliraw.hartosteopathy.com/uploads/1/3/0/7/130776046/2378171.pdfIn PDF document text
    • http://files.linyuaner.com/uploads/1/3/0/7/130776602/29a7bcbe158.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/1/0427/9464/7719/files/51963433813.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4191/5042/files/keel_kavacham_argala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7813/2636/files/zavuzinopos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/94247880840.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/vegizev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9165/6855/files/45186475715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7997/5590/files/61619271699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fexofedome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/3344/8868/files/cazadora_de_hadas_jennifer_l_armentrout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8946/1402/files/12053489730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3002/0247/files/zuxubuputuxitovifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/skin_creator_for_minecraft.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D5C 5140 bytes
SHA-256: 4c47ddec2357923884599b435128db52ad5f96c18e1645d933ad449731140b83
font_01_sfnt_off00005edf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EDF 9916 bytes
SHA-256: f97a72976f7fe0dd78a90a02d009f8d861336b6dbf4b7d1e542f265de598a374

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