Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5c2d578d322cf71…

MALICIOUS

PDF

46.9 KB Created: 2020-08-15 10:19:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0ead56b633379f0d22baa7eee860f45d SHA-1: 648b1095bbfb1850c7d7cfd92c68d8cec0bcd57a SHA-256: d5c2d578d322cf71da4b022e407b1908676fb2635a5a9ed55b1c9a4f66fe7d23
202 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'ceiling fan price list' and the URL itself, suggesting a lure. The PDF_SEO_LINK_FARM and PDF_MALICIOUS_REDIRECTOR_LINK heuristics confirm the malicious intent to redirect users to potentially harmful infrastructure. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/wb?keyword=ceiling%20fan%20price%20list%202018%20pdf In PDF document text
    • http://tijewuf.giornata.net/uploads/1/3/0/7/130775732/rajonejinitoroma.pdfIn PDF document text
    • http://xaliguxu.dbs-fabrication.co.uk/uploads/1/3/0/9/130969618/2e386.pdfIn PDF document text
    • http://files.cladstudioz.com/uploads/1/3/1/1/131163859/xogijobubinelibe.pdfIn PDF document text
    • http://files.englishinisrael.com/uploads/1/3/0/8/130813755/xedotitebe.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/1/0447/5944/9749/files/oxford_children_s_thesaurus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5385/7433/files/84433237859.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8164/4697/files/56542527421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5396/4702/files/swing_trading_ebook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7554/1919/files/pre_op_bariatric_liquid_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2452/files/selino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8252/9445/files/60409376075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3152/6557/files/79728962344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7647/6311/files/pipabizamopulisus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4728/0026/files/65224361437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2784/0669/files/74064023022.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1219/3438/files/basic_english_worksheets.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 2

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_off00007850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7850 5748 bytes
SHA-256: 9a821b22fca86d5c9a7e83da550d3651a08e108339f4fa36ef44723ebff55ef4
font_01_sfnt_off00008bef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BEF 10204 bytes
SHA-256: e7fe52a7b748c4ee4d5ce822261f3156787f960e0e62cd029f34093ca7a24905

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