Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e30958f607454dd…

MALICIOUS

PDF

49.7 KB Created: 2020-08-19 16:51:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a5a0e049a99a6524a90d0574d5c933c SHA-1: 88dc38f97b8a9caa9c84bae44302c57d47b03f57 SHA-256: 7e30958f607454dd30948f7940dfd32a3ae6af0b711f0bf0031876f7dccfc744
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified as a redirector for phishing and SEO link farming. The document body, though heavily obfuscated, contains the same malicious URL and references a complaint form template, indicating a social engineering lure. The ML classifier strongly flagged this PDF as malicious.

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=complaint+form+template+for+employees In PDF document text
    • http://files.f-fire.com/uploads/1/3/2/6/132681501/1433323.pdfIn PDF document text
    • http://xevopix.sarahammerstad.com/uploads/1/3/1/4/131407535/nobodejetu.pdfIn PDF document text
    • http://kotobu.xanderhouff.com/uploads/1/3/0/9/130969742/663823.pdfIn PDF document text
    • http://punike.under--17--driving--lessons.co.uk/uploads/1/3/1/3/131379179/8603136.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/1/0432/3590/1602/files/dark_cloud_weapon_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0160/5278/files/angina_estable_gpc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8298/7158/files/36983315336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0483/3441/files/download_german_books_for_learning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5237/files/20573043845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/internationalization_of_higher_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4486/2114/files/dafokikejufamonapokenuva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2225/3205/files/jandy_aquapure_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0193/0143/files/sezapetizesisesegejojoju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/politeness_principle_in_pragmatics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0212/5733/files/23555911483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/44617467733.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 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_off00008575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8575 5052 bytes
SHA-256: 36b81b5e21c9432acf5043e26d678f02a301d0e63c8221e5873c89db04f8b8cd
font_01_sfnt_off00009696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9696 10244 bytes
SHA-256: 859942dbf488f17c6fa8f069f485791633a5fd2422fe5acef4c8f66684e40d10

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