Malicious PDF — malware analysis report

Static analysis result for SHA-256 71345e9754eba8e5…

MALICIOUS

PDF

50.5 KB Created: 2020-08-07 02:13:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1546a20d9f431727ecfcc3db46dfb2f6 SHA-1: 8d051be062630fb08bb8fc228780322c2a78bd4c SHA-256: 71345e9754eba8e513b01e5f9e60474fae6f5da0f88762b37bc15726dbcfd2eb
194 Risk Score

Malware Insights

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

The PDF contains embedded links, with one prominently identified as a malicious redirector pointing to 'https://ttraff.com/pify?keyword=coumadin+davis+plus+pdf'. This redirector is likely part of a phishing or scam campaign, attempting to lead users to malicious content. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Coumadin davis plus pdf'. The presence of numerous external PDF links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic to distribute the 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.com/pify?keyword=coumadin+davis+plus+pdf In PDF document text
    • http://files.womenscenterbc.org/uploads/1/3/0/7/130738641/ca078359f9139.pdfIn PDF document text
    • http://files.ersolutions.ie/uploads/1/3/2/6/132682585/nomubavalane_degudok.pdfIn PDF document text
    • http://files.dig4con.com/uploads/1/3/2/8/132814073/bepajadowupo.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/1/0437/3941/4677/files/51543097640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/60088697940.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/batman_emoji_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2879/0946/files/24595444402.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8162/1919/files/xiwosememo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1729/8329/files/73042441024.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9613/7111/files/tosos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9902/9655/files/80004750266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2123/6386/files/active_listening_quiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7663/0181/files/xunivatiwonif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3468/files/74090337334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1118/6588/files/xutevitot.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 4

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_off00008175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8175 5056 bytes
SHA-256: 08b4ead78e0e9084efaccd09ad8c95ae3247a431ab2fa627c95680ac35926b64
font_01_sfnt_off0000929d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x929D 13488 bytes
SHA-256: 5a5f861237d077d050a9a85730224374b683ffef0e084e2a26456b5b1a620c58

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