Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a89d40dcf4a9c8c…

MALICIOUS

PDF

36.0 KB Created: 2020-08-24 05:44:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fd55c73fea2751fd7326b9f4a221047b SHA-1: 8e4066e35ac9c2faae8056e0c74d0dbfa79fec9d SHA-256: 6a89d40dcf4a9c8c527a8f8a8a181caf6d53f75fa0965a1a30715b18204be775
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service identified as malicious. The document body and heuristics indicate a 'link farm' or SEO-based lure, disguised as educational content to trick users into clicking potentially harmful URLs. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt.

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.ru/pify?keyword=four+food+groups+canada+worksheets In PDF document text
    • http://jajojif.dianekrys.com/uploads/1/3/0/8/130813604/6696628.pdfIn PDF document text
    • http://virewiwew.secondstoryhoney.com/uploads/1/3/1/0/131070894/bb3aa89b1b1acd.pdfIn PDF document text
    • http://files.animationstationpodcast.com/uploads/1/3/0/7/130738785/dubapi-zimozagafivaz-mivuw-zigewira.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/1/0432/2879/0946/files/27979102820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5529/8213/files/er_diagram_example_questions_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6205/9427/files/88258658242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2249/1553/files/61200118574.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/carbohydrates_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7047/9768/files/hitman_blood_money_pc_windows_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8408/5416/files/74034562581.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1167/8114/files/lilonolin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5105/6295/files/baby_boomers_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3867/7924/files/tilurefewidudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/wemupimojofudiril.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8062/0963/files/buratedivatelesoxovu.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 8

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_off00004e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E39 5496 bytes
SHA-256: 80c24c33ab75d1ce8416fddc3129124b080eb701540891394aa61935f46eaefc
font_01_sfnt_off00006101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6101 9988 bytes
SHA-256: 1fcd4bd603ad5259fbc8d5e7754e79f2d1ca43446a1e6441af4a48063a72c178

Open this report in the interactive analyzer, or submit your own file for analysis.