Malicious PDF — malware analysis report

Static analysis result for SHA-256 e74be8bfcd882c32…

MALICIOUS

PDF

42.6 KB Created: 2020-08-04 07:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9c342a01b112b68770a7c8fe355c5990 SHA-1: 765cb9465ca0bdc977f2d98afb0ba1ea674d5bb8 SHA-256: e74be8bfcd882c32d2c8499939391ad31f6d67abe43feb6a71c640bc5cfb6659
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to distribute further malicious content. The document body and embedded links suggest a lure related to 'basic trauma life support' to entice users to click the malicious URL. The PDF also functions as a link farm, pointing to numerous other PDFs hosted on Shopify, likely for SEO manipulation or to obscure the primary malicious destination.

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/wb?keyword=basic%20trauma%20life%20support%20pdf%20indonesia In PDF document text
    • http://files.mrswittmath.com/uploads/1/3/1/4/131437848/widasekikig_milegafisobo_pidenuk_noxoluxa.pdfIn PDF document text
    • http://files.gdinteriors.ca/uploads/1/3/0/7/130775384/7588314.pdfIn PDF document text
    • http://files.dcmu.org/uploads/1/3/1/3/131380308/xuletaxuwi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1645/2258/files/50725209077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1754/3588/files/90617143187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xifenawapuvesuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9262/1978/files/vuzijusugigipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/98379687692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30549310566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/tuloroserikevoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3305/9737/files/33719409398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2720/8091/files/80484121989.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6286/0699/files/inverse_kinematics_unity.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A19 5232 bytes
SHA-256: 087afa5cef6d617d31bf0c7a7c7278dc066b7ea34545a5d5ee4f39597d70eef1
font_01_sfnt_off00006bbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBE 10444 bytes
SHA-256: f226fbf74ae7e9db2a8f623dc08599a98333d6916c4c0f5a1ba768be8d3cc53b
font_02_sfnt_off00008f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F76 4324 bytes
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c

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