Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb609612c5ba033a…

MALICIOUS

PDF

38.5 KB Created: 2020-08-06 08:04:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 73e7348e70b0b4f8bbb29e3f8f96eb91 SHA-1: ecacbae97d7fc8c636e06e944e73709e3592f434 SHA-256: eb609612c5ba033aeb5f25ef0034bb1c2761c7bfd033079243612cc0abe1058f
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, likely for SEO manipulation to increase visibility of malicious 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=medical+biochemistry+questions+and+answers+pdf In PDF document text
    • http://files.drjohndegarmofostercare.com/uploads/1/3/0/8/130813715/suxorema-duzinen.pdfIn PDF document text
    • http://ziwaguze.acozydeal.com/uploads/1/3/0/7/130775734/laluwosifosebila.pdfIn PDF document text
    • http://files.abbottspatchcollection.com/uploads/1/3/2/3/132303312/187834.pdfIn PDF document text
    • http://files.keanoraubun.com/uploads/1/3/0/9/130970005/c9c76e6c397.pdfIn PDF document text
    • http://files.salmonfallsgardencenter.net/uploads/1/3/2/7/132740294/2626ed6697.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/1/0431/8360/3876/files/arranged_by_nelson_riddle.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5217/9364/files/python_ldap_authentication.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4760/8730/files/rusozuxibekiganowitosipof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0041/4883/files/3517176456.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6517/files/narukaxetolup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/revasibemuxotosel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4235/6904/files/82254662319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6353/2951/files/21015263953.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4593/6535/files/nodoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5573/5199/files/95023875426.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3278/0695/files/innovativeness_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8812/5857/files/rixisezawaverapajuwa.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 8

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_off000056fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56FE 5860 bytes
SHA-256: 23bddd576774acb7a3605bc74a5680bc2e9f13c175a1fd0c12991eacf25acd7d
font_01_sfnt_off00006ada.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADA 10076 bytes
SHA-256: facedf3970564f009a277008d9fb66b4eeeb7e2ae8f9ed5ae3bb8c9dc4ab369c

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