Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e5d0976633254ea…

MALICIOUS

PDF

52.4 KB Created: 2020-08-04 22:02:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c42368999d0974efa24a97b76ed7abe3 SHA-1: 08b75379e5fb0c1a271533d74b72343ba08f01d8 SHA-256: 9e5d0976633254ea49095cf691ec2b7c4e572b500f466028b914c45dd8d18a1b
194 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 download for a Java book. It also exhibits characteristics of a PDF link farm, with numerous links pointing to various PDF files hosted on Shopify and other domains. The ML classifier strongly indicated maliciousness, supporting the conclusion that this document is designed to redirect users to harmful 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=core+java+black+book+pdf+download In PDF document text
    • http://files.birthandplacentas.com/uploads/1/3/2/7/132712661/2441691.pdfIn PDF document text
    • http://files.charlesmuwonge.com/uploads/1/3/1/6/131606546/dipusugurikupes_vabaxatorinuro.pdfIn PDF document text
    • http://files.ccc-ct.org/uploads/1/3/1/4/131406390/guroxede_nufavob.pdfIn PDF document text
    • http://files.mcfaddenrs.com/uploads/1/3/2/6/132695942/9755081.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/1/0432/8872/3616/files/76704554326.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/28521483641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/loligawapazipawafeve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8239/1451/files/64064274112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1644/4315/files/5079955380.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6487/6453/files/tidisatexarasuzodug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9948/0473/files/koviregelikozixejafojora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0383/7592/files/dosinegobigebuloraxenuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1928/0288/files/78701392808.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9838/9145/files/xokarafatuvogew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/5941235649.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6574/5314/files/78918053207.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_off00008f05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F05 5308 bytes
SHA-256: ef9ccc678e269e11607f9b859b0e696df7ef10e4b24631036154168b46163221
font_01_sfnt_off0000a132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA132 10328 bytes
SHA-256: 30be188e2e217976c86c14a5715e15ee0bd27861d67cdfd4ce77bd646f60d42a

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