Malicious PDF — malware analysis report

Static analysis result for SHA-256 7989a00a5101c6ef…

MALICIOUS

PDF

39.8 KB Created: 2020-08-28 08:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 43f44ad02cf86811bbc3603236bfdff9 SHA-1: 62e8087aac8045f32c2dc20bb2851cb2bdf487ad SHA-256: 7989a00a5101c6ef9ae777501a654f4ff27238ef11c6c0747b94d7d089c738a4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to SEO-optimized Shopify URLs that host other PDFs. However, a critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is also present in the document body. This suggests the document is part of a phishing or scam campaign designed to redirect users to malicious sites under the guise of providing a free download.

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=why+do+dogs+have+tears+in+their+eyes In PDF document text
    • http://files.hirowheels.com/uploads/1/3/2/8/132814791/mapixukixujovujexesa.pdfIn PDF document text
    • http://files.vivafitnessshepperton.co.uk/uploads/1/3/0/7/130775934/zokatu.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/1/0450/2742/6468/files/rename_android_studio_project_name.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1054/7099/files/balanced_scorecard_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/94234560749.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0300/1502/files/36878233499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/zedutatujaminojupekiwak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5949/4555/files/opportunistic_infection_guidelines_cdc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5860/9817/files/banderilla_de_tamarindo_informacion_nutricional.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6304/9378/files/waiting_for_the_barbarians_poem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1510/2876/files/46117030572.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_off00005dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD4 5232 bytes
SHA-256: a6943eb17318d151096d231cddf3f31da0e14eb005b45289afd9f7844a8240fe
font_01_sfnt_off00006fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB7 10192 bytes
SHA-256: 69cf496c76de556356c881890c33cd8e9dda66617f7016322e206b007c79bfd4

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