Malicious PDF — malware analysis report

Static analysis result for SHA-256 08da0c7b2a431d16…

MALICIOUS

PDF

42.4 KB Created: 2020-08-01 20:59:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cdae226a3f773536fb08ec0e0be6c6d5 SHA-1: b92607573a708002ef9f4c9fb6b47730c5707cec SHA-256: 08da0c7b2a431d162078c3dee8587591eaffa12f66c249b6607bc043dc4a923e
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to obscure malicious intent. A critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to funnel victims to a phishing or malware-hosting site. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the PDF structure and embedded links point to a social engineering attack.

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.cc/pify?keyword=side+eyes+emoji In PDF document text
    • http://files.premieractprep.com/uploads/1/3/2/7/132710569/9217704.pdfIn PDF document text
    • http://files.callowayfootball.com/uploads/1/3/0/8/130813042/zijogowimabuf.pdfIn PDF document text
    • http://files.slidemash.com/uploads/1/3/0/8/130874110/550f2e69bf6c.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/1/0428/6483/6764/files/57831782212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/5137558887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kepudanunakadop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/kudovozepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4973/8650/files/fazivaloduxaxerilasegipip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/29574237309.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6249/2313/files/donozaliwuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1742/files/14933538922.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/kebokomejuzebalusidugoga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6166/files/48595990657.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8807/5159/files/k_lite_codec_pack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2376/0536/files/sunakodevedare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5226/9717/files/rerebuzirasisonozulori.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2032/8864/files/zafezirozekerifuzusu.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 8

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_off000068be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68BE 4912 bytes
SHA-256: 93358e05dbd1fa9371792760af16aecdd5c6029b1c7087a7040be61fe5a558b0
font_01_sfnt_off00007975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7975 10444 bytes
SHA-256: ebdcb0044fa6d2b6326abd8ddfa722a0a67ab36dfcae05f2dc3a673d5b265ec8

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