Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c5cd01ec8c34591…

MALICIOUS

PDF

57.1 KB Created: 2020-07-28 05:26:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 9881abb25f8d28187bf9421cd6843eb3 SHA-1: caacae246deda0a9607a1484dd2a2821264b22f3 SHA-256: 3c5cd01ec8c34591a532bdfe7c2349f8c326df37f2810166f1b88836a5ff98b6
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'https://ttraff.cc/pify?keyword=narrative+residential+appraisal+report+sample'. Another critical heuristic, PDF_SEO_LINK_FARM, indicates a mass external PDF link farm, with the first URL being 'https://cdn.shopify.com/s/files/1/0429/2742/3654/files/zegelevaj.pdf'. The ML classifier also flagged this PDF with high confidence. The document body, though heavily obfuscated, suggests a lure related to appraisal reports.

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=narrative+residential+appraisal+report+sample In PDF document text
    • http://files.windcatcherjewelry.com/uploads/1/3/1/3/131381003/111bc18a8ce3184.pdfIn PDF document text
    • http://files.owlacorn.com/uploads/1/3/1/4/131453985/gekajevoroki_jutaperefuvuri.pdfIn PDF document text
    • http://files.mmfineart.com/uploads/1/3/1/4/131438330/1e8c11d4bcc5.pdfIn PDF document text
    • http://files.chris6photos.com/uploads/1/3/1/4/131413718/8857130.pdfIn PDF document text
    • http://files.greaterniagarairish.com/uploads/1/3/1/3/131384674/f808ca2eb2554a7.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/1/0429/2742/3654/files/zegelevaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/83384178363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8855/2870/files/93148546468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9712/1178/files/bumobabetusuvufutekader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/35387772697.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3016/7202/files/gimitamaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1321/files/kejajexajofisewamegomu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7670/4669/files/batadakegatoxuviregeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/33943611723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1737/1797/files/59170171511.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9477/8791/files/sikilesujagagaxuwazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/xexiraziwuvopunodixiz.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_off0000a45b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA45B 4924 bytes
SHA-256: dda6d4e9b1e006e1048b29a1f80c961f80dc4ab76dc09e02136525fbbeaeca36
font_01_sfnt_off0000b4fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4FC 9844 bytes
SHA-256: 34d0c1752133f016588b29f6d77469871e3e227f6acd027e43abd09d16258089

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