Malicious PDF — malware analysis report

Static analysis result for SHA-256 63d582abebff9aa9…

MALICIOUS

PDF

38.4 KB Created: 2020-08-05 13:16:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 89d9466932c2d2694e51cd64abfd8d3b SHA-1: ec202c23f336fd9a697c25e4bdb79259cdc8f130 SHA-256: 63d582abebff9aa9ea7d28cbca25a44b92ae0fe389cebc3237c9575558b55534
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) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking Shopify URLs, suggesting a link farm or SEO manipulation tactic to disguise malicious intent. The primary attack pattern involves luring users to click on the malicious redirector URL, likely leading to a phishing page or further malware 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.com/pify?keyword=bioassays+with+arthropods+pdf In PDF document text
    • http://files.culinaryabstraction.com/uploads/1/3/1/8/131857818/palanozeredewipasab.pdfIn PDF document text
    • http://files.giftedsupportnetwork.org/uploads/1/3/1/4/131453097/4810043.pdfIn PDF document text
    • http://files.taaonline.org/uploads/1/3/1/8/131856285/c5bed6fa80c566.pdfIn PDF document text
    • http://xesoz.hollywaightdesigns.com/uploads/1/3/1/3/131380005/1131750.pdfIn PDF document text
    • http://files.jpsediting.com/uploads/1/3/1/3/131379477/welavure.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/1/0430/6717/9165/files/94791864457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1570/7551/files/67704229039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8901/6472/files/60420241322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3723/6119/files/merge_mac_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9633/4753/files/nusegigaravij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8492/7396/files/cryptocurrency_the_future_of_money.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasodidupafulad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1762/3957/files/saturated_calomel_electrode.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0763/1779/files/gisupudapipiwuzetamivina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7908/9824/files/zosagiririmibokeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9599/0175/files/tomexideweralusiniguguleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/zamufok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1347/1384/files/tozixabugor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6628/4446/files/roluketalajimarumiba.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5852 5340 bytes
SHA-256: 28040e720ddd61cd4e6779f13525c8da6e261de27a59d096dce9211c80aca33d
font_01_sfnt_off00006a91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A91 10076 bytes
SHA-256: c14a0b5ad6f9a0b361b563037b8ef8fdb4b78b4c24ed1b38d367d2715e6c7f39