Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fa2779b1f795142…

MALICIOUS

PDF

33.3 KB Created: 2020-08-13 06:53:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42ac545c721c0a3721857b2101cf235c SHA-1: cc7bb8b5117ab18cdaab241301decfed560dd541 SHA-256: 5fa2779b1f7951428666b2930ab45fb6a471e90200d0a5cac60851e2db20cc9a
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service that is known to host malicious content. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure, directing users to 'https://ttraff.cc/pify?keyword=all+present+and+past+tenses+exercises+pdf'. This suggests a phishing or scam attempt, likely using the guise of educational material to trick users into clicking malicious links.

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=all+present+and+past+tenses+exercises+pdf In PDF document text
    • http://files.nomadicsteve.com/uploads/1/3/1/4/131437538/42cb4690f8.pdfIn PDF document text
    • http://files.misskatrinasballerinas.com/uploads/1/3/1/6/131606256/sajuneduto.pdfIn PDF document text
    • http://files.asana.dayafoundation.org/uploads/1/3/2/7/132740204/2496316.pdfIn PDF document text
    • http://files.mylifesaparody.com/uploads/1/3/1/0/131069934/f2e8f3f43ea327.pdfIn PDF document text
    • http://files.rootsdesigncompany.com/uploads/1/3/1/6/131606431/7097172.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/1/0433/6022/3397/files/22790173171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/kenatirarati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8239/0440/files/wozogapufa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7967/7590/files/assinatura_digital_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5793/8581/files/24253974531.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7246/1727/files/susenibunap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0688/6051/files/87318835390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jatud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8581/5205/files/luxosapisizidegazad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1764/9819/files/57529370819.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0862/9659/files/tafsir_surat_al_waqiah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9578/5629/files/79249420544.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_off0000455c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x455C 5204 bytes
SHA-256: 3625baa04f2134e86a04dbdf509fba2af1f41b3950cb85f85af9437e45b10554
font_01_sfnt_off00005719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5719 9720 bytes
SHA-256: 30a30651bb76694f6c6182252f6e356963b1ffec4758b78c06f72419d4e0d083

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