Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e219608d2aa34fd…

MALICIOUS

PDF

60.4 KB Created: 2020-12-20 06:55:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 7be26e700c4658c3b69d962404b54866 SHA-1: 4ea61d20d59ac024927ccc7414f7402f34a9d06d SHA-256: 7e219608d2aa34fdbf76fbe8078bd6870c9bf64ceee33a0a225fe74c86428bb1
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a link to a known malicious redirector, identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The ML classifier also strongly flagged this PDF as malicious. Although no scripts were directly extracted, the presence of a malicious URL suggests an attempt to redirect the user to a phishing or malware-hosting site, likely disguised as a product listing based on the URL's query parameter.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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.
  • 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://gettraff.ru/strik?utm_term=artemis+sailor+moon+plush In PDF document text
    • https://cdn-cms.f-static.net/uploads/4420240/normal_5fb2c547bf0d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427506/normal_5fb8e3eb9828a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7c32861-7f0c-455a-8bf8-01d4fa823858/13893120354.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b6cde42-1e20-46c0-942a-490495909144/zisobosiresovegi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/690e494c-c070-44dd-b4c0-1e6ae3490e32/zusenalewosiwatixexipipu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cedd16f8-b213-4a26-b786-8e7ed100ac72/70029945331.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/sales_and_marketing_notes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02532708-e84e-4f8b-b266-e1ec2b32a13e/gatugipugoropixaxabemaku.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/40429578060.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d2ea24c-1f9b-446f-a8ea-3bc200104e56/swtor_guild_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c60ac96-07f3-416d-a8b0-6b638248dced/modified_side_plank_with_hip_abduction.pdfIn PDF document text
    • https://s3.amazonaws.com/bejeseja/46380248611.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_off0000b19d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB19D 5048 bytes
SHA-256: b1024e916d4b15cded8ea5294ae9630659225c518c2105488ba43a6d023b7249
font_01_sfnt_off0000c295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC295 10152 bytes
SHA-256: 078fe3fa95567373c011f4662507dec48e031bc65211c4c5e650591424b5366c

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