Malicious PDF — malware analysis report

Static analysis result for SHA-256 72479d9863697ca5…

MALICIOUS

PDF

42.2 KB Created: 2020-08-06 01:49:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40f817d9ecebc1cff8b58ac94c913c28 SHA-1: af3d6ad7967e44cbe612b18415ae1d852ee12bff SHA-256: 72479d9863697ca53d9931b05547ad08ef64242f00a4acebe93c425147dd8ef9
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=probability+math+examples+pdf, which is a known malicious redirector. This suggests the document is designed to trick users into visiting a malicious website, likely for phishing or malware distribution.

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.cc/pify?keyword=probability+math+examples+pdf In PDF document text
    • http://kekosoduz.alexaryzinski.com/uploads/1/3/0/7/130776760/pewewe.pdfIn PDF document text
    • http://files.drlindseybeavenmft.com/uploads/1/3/1/4/131438616/gototikige.pdfIn PDF document text
    • http://files.guybuncecomposer.co.uk/uploads/1/3/1/4/131406344/vovazodo.pdfIn PDF document text
    • http://pibekig.lawlorstudio.com/uploads/1/3/0/8/130874422/xolopedivop-dazesep.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/1/0432/7813/9556/files/70880906076.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0491/8941/files/pozegixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80463449019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/xuluzepexuvogobubuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6204/8421/files/bankersadda_reasoning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5420/2018/files/40802673802.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5502/9141/files/bezatubawopiwax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5621/5702/files/superantispyware_for_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0151/1077/files/6294124617.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1646/1211/files/luxibakibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8765/1235/files/favupesejuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/52191272892.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 5

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_off000066d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66D4 5592 bytes
SHA-256: 17723f0a04d0810b3c1be96d2bfce4a3572df0044ff2c6088bf2a907a4241e32
font_01_sfnt_off000079ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79AD 10108 bytes
SHA-256: d573ea9f43c4722257cf3b413b7bafac79a188f3984306aa42516322742fa273

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