Malicious PDF — malware analysis report

Static analysis result for SHA-256 605ee38ade0a6365…

MALICIOUS

PDF

68.6 KB Created: 2020-12-16 17:44:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 946dff76b832f1ee215c1f109b5db011 SHA-1: e571a6c8df55ddb3dd3d4f81869d8aeebd2326b1 SHA-256: 605ee38ade0a6365b25e92a116031b534709498988888fbff0a03b0c97d21993
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains embedded links that redirect to the URL 'https://traffine.ru/123?utm_term=the+definitive+guide+to+self+care'. This URL is flagged as a malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://traffine.ru/123?utm_term=the+definitive+guide+to+self+care In 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/5fbe25ba2dd96f5918b7be74/1606297018807/ponipibulesisu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ece3c5d3-01b1-4a4b-98ac-4092a2fcac1a/78481843051.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fce3c73888ad70830bba236/t/5fd6813b164d0f203c806d75/1607893308773/67834237121.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8aca8c3-25a4-4258-ad54-852e4c557721/23778762674.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/nezupobigagigixiwak.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcdfbf6de434d6c8f046b87/t/5fd1dc9f7cf94534dc5d231f/1607589023973/55395980067.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8a046d5-fb9d-459e-a6da-f2f8640e84b3/mebarazorola.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0ea21e2fce462bc8c0024/t/5fc2516fe6d49a06bbde33f9/1606570352478/what_is_a_homie_fade.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf518e61e25426e12f4b70/1606373775314/namivetajivonogomuxugola.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdf5209b1ed035389fe5a2/1606284577225/82382255908.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc4c956084698658e772771/t/5fd6df71dca221526054cca6/1607917426679/tenobefitezaf.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbfdd38a3bf4b14aba341ea/t/5fc0ec8d9b1ed03538fd0f6b/1606478993576/2011_kia_sorento_repair_manual.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc59e4d104edf1d77a14846/t/5fd058353364176a125a0800/1607489590144/87161859723.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0805cd49dd12447321748/t/5fc141343570fb44d130aa52/1606500660401/petes_auto_repair_tucson.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 5

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_off0000d18d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD18D 5292 bytes
SHA-256: ec21670dc53c916067b9a0a7eb871b0a2fa796faa3a17a3dcbd09f98bc4575e9
font_01_sfnt_off0000e397.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE397 10112 bytes
SHA-256: 804d05fd2e5f2345fded0cb04e66690f8a48c66de5d33423b9c1c1a10f202219

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