Malicious PDF — malware analysis report

Static analysis result for SHA-256 100ecf39675a7170…

MALICIOUS

PDF

42.5 KB Created: 2020-08-08 17:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f10a8dc574192a56b4020295270b3cb3 SHA-1: bb7db3ee20298b8bd1d7ad8ac3f6b20f72289680 SHA-256: 100ecf39675a7170d5a38c98b0d5b3fa7f9e7d7b627fe3cc591f4d31054c042d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body, though obfuscated, contains the URL https://ttraff.ru/wb?keyword=lord%20of%20the%20wings%20lebanon%20menu%20pdf, which is a known malicious redirector. This indicates a phishing or scam attempt to lure users to a compromised site.

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.ru/wb?keyword=lord%20of%20the%20wings%20lebanon%20menu%20pdf In PDF document text
    • http://files.negsbestthing.com/uploads/1/3/2/8/132815961/riwemuto.pdfIn PDF document text
    • http://files.griffingazette.com/uploads/1/3/1/4/131452872/tuvuliwu_batimivakidaxir_ximugupudokunu.pdfIn PDF document text
    • http://gobolu.francesmcmahonward.net/uploads/1/3/2/6/132695329/5169560.pdfIn PDF document text
    • http://files.abiwright.co.uk/uploads/1/3/0/7/130739269/xezozun_dekumotuxewixil_deromajixoso_weremudiral.pdfIn PDF document text
    • http://files.hrmsbeta.org/uploads/1/3/1/4/131453432/6f49a6ee88.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/1/0429/5720/9753/files/benson_s_microbiological_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2892/9960/files/7184420888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0811/5366/files/boluxomegerofewemidobadan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/jiwamiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0313/4627/files/palubupinotidugifewosiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8555/3061/files/zuseni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6353/3977/files/free_multiplying_fractions_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6539/2804/files/91254380162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kerikelamizefebimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6404/2396/files/nonokamet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1007/1460/files/mokoradafoxumidixove.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_off000066f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F5 5628 bytes
SHA-256: 73397b0500db69a3a78627663030078c792985401f692ef58d2847b3181b9f68
font_01_sfnt_off00007a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A04 10272 bytes
SHA-256: 6aad7991b1ac7aa2a300ac819c5d190aac2ded99db4bb03ba136c6467e2d8723

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