Malicious PDF — malware analysis report

Static analysis result for SHA-256 92fe96ffaed708c6…

MALICIOUS

PDF

71.4 KB Created: 2020-11-30 20:36:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: dc410e2fee33c2bc1036a9d6717bd8c2 SHA-1: d3706935548d9f8237b4587af1ecb70f89aab8f1 SHA-256: 92fe96ffaed708c6e8564ea2e867fdf0b50d9f4d37e343e4a993dcf697ebc718
156 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_SEO_LINK_FARM and an embedded URL pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate maliciousness. The embedded URL likely serves as a lure for users to download software, potentially leading to further compromise.

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
  • 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.
  • 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://traffnew.ru/strik?utm_term=adobe+animate+cc+download+with+crack+zip PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366344/normal_5f95d75b77ccf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481539/normal_5faf82103dfbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369659/normal_5f93e8b2f3fe4.pdfIn PDF document text
    • https://taroxeme.weebly.com/uploads/1/3/4/3/134358537/a4d3d0d11e.pdfIn PDF document text
    • https://kuwugexikoxol.weebly.com/uploads/1/3/4/7/134718068/3c9255.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369519/normal_5f8d078df05e5.pdfIn PDF document text
    • https://mesaxejako.weebly.com/uploads/1/3/4/0/134097573/votode.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426543/normal_5fb6081f08de5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444357/normal_5faa2b134a5f0.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/5fbdf2bd173fb5383b6750c0/1606283966323/xasuloxiledatelej.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf6060f8cdb769c6da9c29/1606377568862/english_speaking_countries_in_north_and_south_america.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2873493e9e2166fa49c3/1606232179813/79173446427.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0baa35687f52b6b804624/t/5fc18ff84e98326c024b8854/1606520824783/tuxabile.pdfIn PDF document text
    • https://s3.amazonaws.com/busutafitufe/widagojetumatab.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd09b52c6de34c7a3a8b86/1606224313277/91497655598.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_off0000d9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9C6 5472 bytes
SHA-256: 47b8e881e3da3d112610f56ebbde5142828cb98d0f46d579c3a417c5f9947fc1
font_01_sfnt_off0000ec47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC47 10716 bytes
SHA-256: fa170f7d967127a5e878e50f82e6d4c9681ac49c729f557ad5ab3b4c98e2c871

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