Malicious PDF — malware analysis report

Static analysis result for SHA-256 36ce2f3b6a33af59…

MALICIOUS

PDF

41.2 KB Created: 2020-08-02 20:26:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cf69605c70c8e2d3c59086469466cb7e SHA-1: edeeece72c5ecf320227457912016e7cf85ee977 SHA-256: 36ce2f3b6a33af59502942cf96d03d3a0951163b25659e6f884649efb7203f87
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a malicious redirector link, suggesting these links are intended to lead users to malicious content. The ML classifier also strongly indicated maliciousness.

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=wish+you+well+movie In PDF document text
    • http://files.ritterelementaryschool.com/uploads/1/3/1/4/131408250/zamavexinoz.pdfIn PDF document text
    • http://files.starfireband.ca/uploads/1/3/1/4/131408250/ninaduwa-sizevilito-texokaf-lesalugobediv.pdfIn PDF document text
    • http://files.davidheinick.com/uploads/1/3/1/1/131164211/sipurex.pdfIn PDF document text
    • http://files.joyandmarquette.org/uploads/1/3/2/8/132814272/6430349.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/1/0436/4143/8366/files/6615323438.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8390/6724/files/denebidakewup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4263/files/89530932436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5205/6227/files/20608155913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9359/0167/files/negadoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7966/3765/files/xupopasosupalogivulajoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4713/3088/files/naserobuvumisane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9869/files/dudawupapozulekusejowo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9332/7008/files/1780671505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4189/0208/files/39507647664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/dezixovud.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 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_off0000650c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x650C 4884 bytes
SHA-256: 60ff89c831f1fc7da48782c88f9b17af090e081c30a55295b3ff9eb77fd3baeb
font_01_sfnt_off000075a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75A6 10088 bytes
SHA-256: 993f9a67e7203c71503f811235e30b70eda4161a3b032bb89b1bf41b6ea65ee0

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