Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0cdbb25aee3c59d…

MALICIOUS

PDF

37.4 KB Created: 2020-08-12 10:40:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0de747451c276e0cfebf806bd408ba1 SHA-1: f6a00444894cb1832aa84e4b98e819b73db49597 SHA-256: d0cdbb25aee3c59df59a9a321683b07315339560750d05949a468a4dd6b895ea
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) which is flagged as malicious. The document body and embedded links suggest a lure to download further content, likely malicious. The presence of embedded URLs and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic strongly indicate a phishing or content-luring attack pattern.

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=abeka+phonics+charts+pdf In PDF document text
    • http://files.lutoncentralmosque.org/uploads/1/3/1/4/131454109/6908927.pdfIn PDF document text
    • http://files.ermineskincommunity.ca/uploads/1/3/0/7/130740249/vunopurunoson.pdfIn PDF document text
    • http://files.rayoflightwitness.com/uploads/1/3/1/6/131637385/pafazodogore_nuzalu_xogusekotet_kusupez.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/1/0429/6785/9359/files/92320603660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/annex_18.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4463/3750/files/wow_f2p_guide_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9862/8501/files/juzoderinaguj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6509/6857/files/gedobuzatepimegitove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7093/0600/files/mibuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1654/2632/files/diccionario_psicologia_dorsch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5294/8901/files/16710118125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9032/7205/files/human_body_anatomy_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/61047377128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3341/9166/files/mystery_skulls_album.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/91937361079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/differential_and_integral_calculus_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/24282689979.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_off000055f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55F4 5404 bytes
SHA-256: 262c029717fd11d2af8cedd457f0ddd38e3fb407e0acdabbeda716b0c0c72763
font_01_sfnt_off00006841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6841 9540 bytes
SHA-256: 8960a33669c910f40adc94b1ac77bb51fd9c59030d5d54d8b2df68bfbf288ec8

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