Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd5c800e82e251e…

MALICIOUS

PDF

34.5 KB Created: 2020-08-11 23:18:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1966b30db1f6629af78d6f1dd1a1ca75 SHA-1: ed2a0453d6426059ca68018506587e8bb8fc8142 SHA-256: 9dd5c800e82e251ec8eb2b75dc3105538cd96400b21e08cabff9a6113ade6d15
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 disguised as an educational resource. This indicates a phishing or scam attempt. The document body and embedded links suggest a lure to download further malicious content or redirect to a malicious site.

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=cambridge+igcse+geography+student+book+pdf In PDF document text
    • http://files.polishheritage.org/uploads/1/3/0/7/130775025/lelesejokogorem-notosow-suguxikip-vipifi.pdfIn PDF document text
    • http://files.susanmccombs.com/uploads/1/3/0/7/130775277/rujasojubelifi.pdfIn PDF document text
    • http://bekev.ceso.on.ca/uploads/1/3/1/6/131607321/2d173af7ef897.pdfIn PDF document text
    • http://files.pamelagilbrethwatkins.com/uploads/1/3/1/1/131164431/boropi_fuxanam_loxegevox_kedidivilegob.pdfIn PDF document text
    • http://files.viproulettesystem.com/uploads/1/3/1/4/131452858/reteli_wusubumutope_legemoj_muzuvudawogexa.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/1/0431/0489/5143/files/72192535044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/64203893187.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4987/6630/files/14718747554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9941/3910/files/76348485421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3173/2132/files/24544510851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/92588999912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0360/1308/files/tibetaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9054/1728/files/luwadotitugudasof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2315/5878/files/tosewegeguvagarekozidojex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/6583/1577/files/advanced_microsoft_excel_formulas.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_off00004827.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4827 5748 bytes
SHA-256: ec08044154fd541226720bc0e8942aeb6860315309671e30139b6383e3f80945
font_01_sfnt_off00005b94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B94 9908 bytes
SHA-256: 052a7c6825d4a9113b784ff99d5cb501c6775a224bfc3460124a1d930cb54191

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