Malicious PDF — malware analysis report

Static analysis result for SHA-256 73e830ecede02e17…

MALICIOUS

PDF

40.0 KB Created: 2020-08-27 15:01:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddd0f08354676442b89a7ea91f64f1f5 SHA-1: cec1aa2332d68c78bf4ad9c508171120e0982d39 SHA-256: 73e830ecede02e1771d492b8ed279d9d6ed811b5b681bc1c509a77fd9582a339
194 Risk Score

Malware Insights

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

This PDF document contains multiple embedded links, including one pointing to a known malicious redirector. The document body text, though garbled, includes a search query for a thermostat manual, suggesting a lure to trick users into clicking the malicious link. The presence of numerous links to Shopify-hosted PDFs indicates a potential SEO link farm used to disguise malicious activity.

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.club/pify?keyword=honeywell+digital+non-programmable+thermostat+manual In PDF document text
    • http://files.catherineccartwright.com/uploads/1/3/1/3/131379830/8215836.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/1/0428/3590/2631/files/52619813029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2353/2195/files/lyman_48th_edition_reloading_handbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9320/5916/files/60448740044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1784/6427/files/enlaces_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6613/0593/files/robusobomitumoxiguwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/85773029492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5641/4363/files/12537841243.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7049/6661/files/best_annotation_app_for_android_tablet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4663/2615/files/2001_toyota_camry_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5253/7758/files/35815719939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7099/7151/files/70653320754.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/aroldis_chapman_contract.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_off00005b64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B64 5700 bytes
SHA-256: ed5c12f9cd57485dce37a3c1baf910325f6aaba58cbfd280f9d3416829eab981
font_01_sfnt_off00006eae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6EAE 10788 bytes
SHA-256: a758bf552a7873d6ff8a0e9013f161518862d104f0ab404c69df569e2be5bd90