Malicious PDF — malware analysis report

Static analysis result for SHA-256 d190454ab633bee9…

MALICIOUS

PDF

71.6 KB Created: 2020-08-08 21:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11dbb4c1ee2bdf637f139fd05abf2983 SHA-1: 7041772147d4ec629a404e4b373f3c5fcccdd668 SHA-256: d190454ab633bee9f5b4bc516082508849cf8ba28d9fa2f5830c00c4973a96a5
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, many pointing to Shopify domains hosting PDF files, and one critical link to a known malicious redirector at ttraff.com. This indicates a link farm or redirection scheme designed to lead users to malicious content. The ML classifier also 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.com/pify?keyword=a+day+in+the+life+beatles+piano+pdf In PDF document text
    • http://files.mondojud.net/uploads/1/3/1/6/131606844/3483932.pdfIn PDF document text
    • http://files.barbarasuebrodie.com/uploads/1/3/1/4/131452959/tinebowulapiz.pdfIn PDF document text
    • http://files.wearecommunityfirst.org/uploads/1/3/0/7/130739718/2322287.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/1/0449/9256/1310/files/jquery_set_style.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2669/2771/files/fedajununewumoledirozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9776/7592/files/73120094068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5106/4228/files/xeguwalofijifudufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/notibiraxufuwenudisivuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2843/8427/files/89262496022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7038/2490/files/92433890393.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/berowojoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3966/0951/files/88997638504.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_off0000db9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9B 5264 bytes
SHA-256: 94566cc22fbf5c8cb3d4d23a2e3cfce78e40e3994bf5a57be65e4471a0574abf
font_01_sfnt_off0000ed8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED8A 10564 bytes
SHA-256: 9926ec179878136da6fd1e48e506fcfa96fec663a54753db444f1fcf00a6f961

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