Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d45f7461432e794…

MALICIOUS

PDF

40.8 KB Created: 2020-08-28 09:20:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6631ec9d9f9aa7bb76b268024120bc45 SHA-1: eaa1a0ba545915a72afb3d7cce269eec8b9c21cf SHA-256: 5d45f7461432e794f0a6149f0b2117d84472210a36ab994c2db2ced382ea7f8e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a link farm designed to redirect users to malicious infrastructure, specifically identified as 'ttraff.ru'. The document body, though heavily obfuscated, contains the malicious URL and numerous other links, many hosted on Shopify, likely as part of an SEO manipulation scheme to appear legitimate. The primary malicious URL is 'https://ttraff.ru/pify?keyword=la+batalla+en+el+desierto+pdf'.

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=la+batalla+en+el+desierto+pdf In PDF document text
    • http://files.kpscritters.com/uploads/1/3/2/6/132696598/gasikawafetolefu.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/1/0432/9380/2646/files/android_version_names_a_to_z_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/2790/9019/files/bonetusadorafimuzuzixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4570/7166/files/47332672250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5343/files/vopokabi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3577/0535/files/android_18_dragon_ball_legends.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/3810/5749/files/80104098948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/31976246928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6080/3237/files/bronconeumonia_en_perros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9971/6770/files/tetivowo.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 1

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_off00006105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6105 5116 bytes
SHA-256: f1a4f383f17e35e2d65a3871dc181dbfe8306e2f6e8b0e5accd38a3b46df8469
font_01_sfnt_off00007271.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7271 10704 bytes
SHA-256: 271380f4a58dac1b8d018bc77a1273a4d0fdd7ffff956a25fa0e5023f027bf3e

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