Malicious PDF — malware analysis report

Static analysis result for SHA-256 db9eefd286174f93…

MALICIOUS

PDF

38.2 KB Created: 2020-08-10 13:16:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5be856302efa602d521fb6cd0ac89de SHA-1: c95bf8ece970b4473b874d32fcaff86b06de1bc7 SHA-256: db9eefd286174f934b5e2fee8a8163e7a0db6e06a80671188e358bc99ef64360
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.com, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains text related to a periodic table and the malicious URL, suggesting a lure. The PDF also contains a large number of embedded links to Shopify domains, many of which are flagged as benign, but the primary malicious link is clear. The ML classifier 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.com/pify?keyword=periodic+table+of+elements+flashcards+printable+pdf In PDF document text
    • http://ziledud.dharriganassociates.com/uploads/1/3/2/7/132740541/tojebiluz.pdfIn PDF document text
    • http://files.mywaterfrontteam.com/uploads/1/3/2/7/132711954/gogekepori.pdfIn PDF document text
    • http://wowuvo.nexustherapies.ch/uploads/1/3/1/3/131383483/dosuzogofojov-vakulif.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/1/0433/0812/2270/files/gukisixasaxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9957/files/nejizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8402/9854/files/83612890845.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2717/7380/files/kriss_kross_jump_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/7272524765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9292/6873/files/15242254150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/88860168026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2668/5858/files/56123189787.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4248/files/casting_defect_and_remedies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0805/6740/files/72389023117.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 2

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_off000056b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56B8 5536 bytes
SHA-256: 89734e9bdc6b8b20a7dde95a16927492765ee70f4b85463ef199dd56fced4575
font_01_sfnt_off0000694f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x694F 10104 bytes
SHA-256: 1df9bc991a6655fe2acf77848064f67bec0312d7c2d7fcb199433645472c12a6

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