Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d6575759582aa34…

MALICIOUS

PDF

69.0 KB Created: 2020-12-21 11:51:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 615686942352400c04eecbe2a9f2cd81 SHA-1: 32b19aeea72fde280d1e489eb7023b0f82ae9621 SHA-256: 4d6575759582aa3481ee11fde4940011f277601b647cecdef77f40bb83f74fb9
196 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous external links, many pointing to SEO-optimized redirectors, indicating a link farm or phishing lure. The primary malicious URL identified is 'https://trafftec.ru/strik?utm_term=80s+90s+country+music+songs', which is likely used to distribute further malware or conduct phishing. ClamAV detection and ML classification strongly suggest malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/strik?utm_term=80s+90s+country+music+songs PDF link annotation
    • https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/3718456.pdfIn PDF document text
    • https://dezazobe.weebly.com/uploads/1/3/4/7/134755526/c5cd6762.pdfIn PDF document text
    • https://luwamagol.weebly.com/uploads/1/3/4/3/134375262/4c2e02f.pdfIn PDF document text
    • https://viwuwobigoku.weebly.com/uploads/1/3/1/3/131378942/cfc646e583a11.pdfIn PDF document text
    • https://fuzedefona.weebly.com/uploads/1/3/4/5/134578490/2485765.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe3cbc2dd96f5918ba030d/1606302910041/download_minecraft_pe_0.13_1_apk_free.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fdc7d42ec98190d8a5337c0/t/5fdcacb27ff8e90c28feccf4/1608297650579/21558626545.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7f81cdc-692e-4493-880e-974c285fd274/flash_sagittario_vs_cosmic_pegasus.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc29ae41c8c7413143cd114/t/5fc823e1dcb5b26079702562/1606951905631/74799142076.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fe006135b7bc96605614f88/t/5fe06738c18bd5077cd0fa93/1608542008867/50070156718.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdedd95895864d89531a1f/t/5fcf738124ae147ef3de8cd8/1607431042093/football_legends_2016_unblocked_66.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc53ca112facd59cec97030/t/5fcdee6d9aa2de0c64b73fb4/1607331438360/83722818994.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f88bd26ff1194f740ef3/t/5fcad1c2da45e86cca96115f/1607127491042/extreme_motorbike_game.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d189.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD189 5376 bytes
SHA-256: 26ee72c9361e6395d059ac7565c0adef21c9f55059c7fc6b8be460e903cf2550
font_01_sfnt_off0000e3c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3C1 10600 bytes
SHA-256: 61af0855807940f68cc298bc23c245657e5c06d27c7cd54326d2179ebf6ace2e

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