Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ddf020db4d6d007…

MALICIOUS

PDF

40.3 KB Created: 2020-08-22 23:15:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e4ccdb36a613428ee5a6f540b74cef57 SHA-1: 9d4c566e1436904f56f4ac8066ff82a4ccbea88b SHA-256: 5ddf020db4d6d0074eb8867586e3e32107a51f46d93cf3e977ce6b03bc9699a4
194 Risk Score

Malware Insights

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

This PDF file contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of an SEO link farm designed to funnel traffic to a malicious redirector. The primary redirector URL is https://ttraff.cc/pify?keyword=assembler+directives+and+operators+of+8086+pdf, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting the file's purpose is to direct users to malicious infrastructure, likely for phishing or malware distribution.

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=assembler+directives+and+operators+of+8086+pdf In PDF document text
    • http://files.thedoghousepetservices.com/uploads/1/3/0/8/130873895/257a01.pdfIn PDF document text
    • http://files.jansceramic.com/uploads/1/3/2/7/132740633/xowopa.pdfIn PDF document text
    • http://nubopaden.cseventservices.com/uploads/1/3/1/3/131384714/burasej.pdfIn PDF document text
    • http://files.tsd401bond.org/uploads/1/3/1/4/131483343/zuvefe_jobominisu_dofosokebuxo_wobumavepati.pdfIn PDF document text
    • http://nedazalum.thepinnaclecafe.com/uploads/1/3/0/7/130775376/penaruzafenov_xowopan_fozebebum_zonunevasuj.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/1/0437/8984/4641/files/sopudodiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9317/9030/files/nsw_traffic_accident_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5461/9041/files/worksheet_2._2_limits_and_continuity_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8688/9639/files/thrombocytes_thrombus_formation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1822/1730/files/descargar_cancionero_cristiano_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4048/0164/files/english_grammar_articles_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2762/0249/files/8635468650.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4045/4294/files/struttura_divina_commedia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6990/5825/files/convert_kindle_to_windows.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
🗂 Part of campaign: jansceramic.com 4 samples

Related samples 6

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_off00005d25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D25 5980 bytes
SHA-256: 78db39dc29af0d3cfdeeee22eed8a517046bdbe94aed25e6ad219c55207c0a78
font_01_sfnt_off0000715f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x715F 10172 bytes
SHA-256: 293aa0edf39bba6405f6e552e725f732b4d95ef429ce6f42cad6cf99e0529c26

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