Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6eea72511f717bc…

MALICIOUS

PDF

67.3 KB Created: 2020-12-11 03:40:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 14604570c256d489dccf6a29bbdbb4ce SHA-1: 20f7057f3b278280d023283579a4b9d54445757c SHA-256: f6eea72511f717bcefde01518fc2272fbecdea5edd648f7f5866279bfaffbf33
96 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 embeds external URLs that direct users to attacker-controlled resources. 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
  • 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://traffking.ru/strik?utm_term=fun+unblocked+game+websites PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4464707/normal_5fb6d5f573902.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388619/normal_5fb4ec75e089e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451044/normal_5fa0c3b3a7899.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387819/normal_5f9e683131921.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390637/normal_5f937f4020e47.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/4fe5b2e2-eee6-4002-b500-e9d6dd45e96b/palabinupewasofafinexaxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8a0c4460-e25a-44d6-bf7a-0d8f93631a90/98903247006.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/59913400133.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/matching_uppercase_and_lowercase_letters_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/brainstorm_green_needle_video.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5311b405-bba3-46bd-b008-e6853735afed/ti_86_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/80101204-cbc9-4575-a414-0fab3470ff2f/bryant_350mav_parts_list.pdfIn PDF document text
    • https://s3.amazonaws.com/kopisigapub/61908338984.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_off0000cafb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAFB 5416 bytes
SHA-256: 1713a9acc25f9d680df530695f52dd2521a66a3968d7def25d6c5510879e227b
font_01_sfnt_off0000dd6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6C 10296 bytes
SHA-256: 9a1fad0fa1936c6e9b2962727f79196b75e982cc3338a1545a7933b443e618fd

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