Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d29c58a8f9d5c1e…

MALICIOUS

PDF

35.4 KB Created: 2020-08-22 23:17:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a5dad5e5bcd8a158558a92f76f877fe SHA-1: 304dc79f318032dca314b2fe83c02a218869956f SHA-256: 0d29c58a8f9d5c1e481f9c69f9755fdbcf3d49974091d50c254e3f24db2e594b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting it is an 'answer key' for 'relations and functions', a common lure for SEO spam or phishing. The presence of multiple PDF links and a malicious redirector indicates an attempt to drive traffic to potentially harmful content.

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=relations+and+functions+answer+key In PDF document text
    • http://besin.augustahomesnc.com/uploads/1/3/1/6/131637149/doleni_lamelivemi_bofege_nunek.pdfIn PDF document text
    • http://files.heartlandarchery.ca/uploads/1/3/1/4/131437984/f713b787c.pdfIn PDF document text
    • http://rugiganif.sdmwoodworkings.com/uploads/1/3/1/3/131378816/sisefedunodofuviguv.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/1/0429/6772/8279/files/gifogibosenubigaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/forolomopojen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1483/1780/files/22135142304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32600433864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4363/2805/files/acls_cardiac_rhythms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/inorganic_chemistry_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9153/3725/files/58679974818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/tuwanibolibowojulamozor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/2938/0510/files/mavilorazagibirupekewi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/48746550477.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 3

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_off00004924.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4924 5280 bytes
SHA-256: f8cddff3a90b8e022592a08ccdf18080b8607d98a2b31310749f4544922c39df
font_01_sfnt_off00005b44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B44 11648 bytes
SHA-256: cd8c9a242db500a78e16de104a1c1be669db86995fc8b4cbe57251e7decb069c

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