Malicious PDF — malware analysis report

Static analysis result for SHA-256 15097e55d9a13d23…

MALICIOUS

PDF

39.6 KB Created: 2020-08-19 09:31:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9a03da08920e02db8e62b6f298038328 SHA-1: b5df18ceb05386894ae5440f543086ca54b0d608 SHA-256: 15097e55d9a13d231e74287f4019a6040a575bc62ffa96f01991e08ab1d07db9
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to redirector infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=bar+graph+and+line+graph+worksheets, which is flagged as malicious. This suggests the document is designed to lead users to malicious websites, likely for phishing or malware distribution, masquerading as educational content.

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=bar+graph+and+line+graph+worksheets In PDF document text
    • http://files.pattayaguesthouse-hideaway.com/uploads/1/3/1/1/131164567/7ecde486ad98d.pdfIn PDF document text
    • http://wosad.guzmansdancestudio.com/uploads/1/3/1/4/131452883/19f6827bf3bb5.pdfIn PDF document text
    • http://xomamudux.kroadcottage.net/uploads/1/3/2/8/132814930/wemimovis.pdfIn PDF document text
    • http://files.horsetrekmongolia.com/uploads/1/3/1/4/131453053/3761080.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/1/0430/6056/0025/files/vojiluzaxuzibekubote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/ropeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46605756913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4388/0103/files/lenaxagiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7256/1050/files/sivamolud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4537/0518/files/lysogenic_cycle_of_bacteriophage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5907/5477/files/53961760324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4529/8080/files/gususuwodubemumiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/62167578719.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 4

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_off00005cc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CC8 5428 bytes
SHA-256: 80f580c6e75f8f7b20c7de5469a3ada1c33660c037e5b8786b218531bfb7f577
font_01_sfnt_off00006f42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F42 10132 bytes
SHA-256: c128480736c9e0eeaa4736098122d092edd8066d6f22853d9bb9e939e7f8df11

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