Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea52224c41e26614…

MALICIOUS

PDF

35.3 KB Created: 2020-08-10 18:42:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d2c98f5501ddbdd52e84e82197b5dfe1 SHA-1: ed4f09062bd5cce0197ed61be0e8ea613623c872 SHA-256: ea52224c41e266143d12a99f787e79d906a12a039d5588ff25f6ca7730a51a1c
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector link, indicating a lure to malicious content. The ML classifier strongly flagged this PDF as malicious. The embedded URLs, particularly the redirector at 'https://ttraff.cc/pify?keyword=geoffrey+broadbent+design+methods+in+architecture+pdf', are indicative of a phishing or malware distribution attempt.

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=geoffrey+broadbent+design+methods+in+architecture+pdf In PDF document text
    • http://files.julescritchinson.com/uploads/1/3/1/1/131163969/xiwasubusas.pdfIn PDF document text
    • http://files.nourishnotdiet.com/uploads/1/3/0/8/130874134/8594328.pdfIn PDF document text
    • http://files.evanscountyhistoricalsociety.org/uploads/1/3/1/0/131070867/kajemutepu.pdfIn PDF document text
    • http://jipokobu.pharmalauren.com/uploads/1/3/1/8/131871390/128352ffb808.pdfIn PDF document text
    • http://wavetuxu.weekeepcompany.com/uploads/1/3/2/6/132682883/7749820.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/1/0440/0254/1726/files/bobur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6297/6921/files/39495095820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5700/5215/files/lomoxamepatafov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4923/8179/files/gibizowigujetavimixifexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0158/5569/files/gogowev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9431/9009/files/31312744414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5481/5640/files/lamajufivaburere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3581/files/fantage_ecoin_generator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9825/0141/files/addicted_novel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8814/2743/files/magurube.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 7

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_off00004b1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B1B 5812 bytes
SHA-256: 4b0d199734b1c63f5865c5bf4c05ea88a4a2400cb0c05f7253ca4d7805b37b5d
font_01_sfnt_off00005ec3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC3 9716 bytes
SHA-256: 18d0613a8a191033ea4df7cf6ca23f69ba3663ce656de36a298b5ba8b72dc228

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