Malicious PDF — malware analysis report

Static analysis result for SHA-256 33b3bfb44ac2ff6b…

MALICIOUS

PDF

52.5 KB Created: 2020-08-23 20:51:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 14deb55fc999acfd2f86d7eb679df1b9 SHA-1: be06903f0010c6f7d7cd8aa2017b9a34f216c4cc SHA-256: 33b3bfb44ac2ff6bf9468e0eef94207f9dfeb873edb9ff6baebdb9bd96a4e11b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged as malicious due to the presence of a redirector link pointing to known malicious infrastructure. It also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning attempt. The primary malicious URL identified is https://ttraff.cc/pify?keyword=xamarin+forms+custom+display+action+sheet, which is likely used to funnel victims to further malicious 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.cc/pify?keyword=xamarin+forms+custom+display+action+sheet In PDF document text
    • http://wopube.dslvnjny.com/uploads/1/3/2/6/132696056/18b0ff5.pdfIn PDF document text
    • http://files.recycledcabinetsolutions.com/uploads/1/3/1/3/131380966/defogefiti.pdfIn PDF document text
    • http://files.metlifelostpensions.com/uploads/1/3/1/3/131381772/tudinadajuxanigolib.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/1/0433/5144/1560/files/23785373364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8649/5397/files/17666230788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1703/5166/files/sidunojabumese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7900/7398/files/andhra_pradesh_rivers_and_dams_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6041/9989/files/rezokesesasufituguniku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/71821963608.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4496/9367/files/3619118904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7014/4166/files/nezuzesivifubaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5791/3749/files/fss_failure_to_report_found_property.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2717/6344/files/58349359948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3192/8730/files/rusuvero.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_off000088d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D0 5472 bytes
SHA-256: b124767235c9ecbe4f0a138c3e57dbe61f5bf79be3d2ad5f9f6151e34cf9fb35
font_01_sfnt_off00009b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B42 12560 bytes
SHA-256: c37bdc36c228bc786ebe6faa7b8bd2fd94f8df8ee325f015efbfebaf92a7ec0a

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