Malicious PDF — malware analysis report

Static analysis result for SHA-256 20d184587413b5c7…

MALICIOUS

PDF

43.6 KB Created: 2020-08-20 02:04:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 695add82372043658590609a71e60991 SHA-1: c5e422e5e3140920313982f5ec0dfacf42c7914e SHA-256: 20d184587413b5c7bfba614e2a625e9b7f2c2a363d8b65670a11b9541ce73461
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a 'Honda motorcycle uk certificate of conformity'. This indicates a phishing or social engineering attempt. The PDF also contains a link farm pointing to various PDFs hosted on Shopify, one of which is also identified as a potential IOC. The document body is heavily obfuscated but contains the redirector URL and a Shopify URL. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.ru/pify?keyword=honda+motorcycle+uk+certificate+of+conformity In PDF document text
    • http://mifejotu.trinitariancongregationalchurch.org/uploads/1/3/1/4/131452938/62e0481f29.pdfIn PDF document text
    • http://files.ryanmarkmorgan.com/uploads/1/3/2/3/132303102/xezepevosetewi.pdfIn PDF document text
    • http://files.chicagotrainingcenter.org/uploads/1/3/0/8/130813466/8ba01335891f.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/1/0433/4164/3928/files/7821988635.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5990/2624/files/currency_and_capital_of_different_countries.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/rajinekeli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2454/0071/files/george_eliot_school_nuneaton_ofsted_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/ikea_australia_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4374/9029/files/antimalarial_drugs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/zezaganik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29529942485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8860/1503/files/46146627520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/97916080855.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: chicagotrainingcenter.org 3 samples

Related samples 3

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_off00006b9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B9B 5116 bytes
SHA-256: 92eeb84454c466a7ae8dfacd0634fcd7af811e897d93c8f59c21c548000f4804
font_01_sfnt_off00007cf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF3 10788 bytes
SHA-256: a2a1954c92afad70e9e71f56d7652657f118c941705c68db7fb9f4d29166b9b7

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