Malicious PDF — malware analysis report

Static analysis result for SHA-256 222a6b6bf6dcc61b…

MALICIOUS

PDF

63.9 KB Created: 2020-12-16 16:21:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 52d7a0e8af10701dea94a4bff7542299 SHA-1: 91917f1e0bbede926c80638fda367a474b13f463 SHA-256: 222a6b6bf6dcc61b5f40b6232b4cf01d70b28d6cbcc5f68e82a6ebfaa7b25619
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=static+x+start+a+war+download In PDF document text
    • https://static.s123-cdn-static.com/uploads/4377679/normal_5fc6f2ba50e5f.pdfIn PDF document text
    • https://lokixesope.weebly.com/uploads/1/3/1/6/131607163/b4c3416953b5924.pdfIn PDF document text
    • https://veraweno.weebly.com/uploads/1/3/0/7/130739577/dudurojasav.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412403/normal_5fb4079f2159d.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/e199b6d9-7387-459d-bf98-e2613acb8d07/lulijazapuxadozajelap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db9c4677-7288-46c3-8d28-3ba7097db197/unsubscribe_all_steam_workshop.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/end_of_life_product_template.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcee56d94f25741fd49f049/t/5fd07d4806d21916ed6eb58b/1607499081683/guwezusafotoxabawen.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/gapidewoxarej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3c6dcdbe-f1e9-4b2f-aae5-ff030e34154c/39435120263.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3841a90-0fa1-4df0-a686-16f95c3285fc/fofagiraxigemosuxup.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5af41a3bf4b14abc9db24/t/5fcfb0a9b8233e30dfb6e8cb/1607446698277/verizon_call_filter_free_vs_premium.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_off0000bac2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAC2 5196 bytes
SHA-256: 51119b6d8c20920ff988a087e945295331e6bdd363454cc22824ad135d15cdfc
font_01_sfnt_off0000cc8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC8E 11320 bytes
SHA-256: fd4ba8f781222a351975d9a28d5c75a182c4729be8defd935ff8edaaf6ea462f

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