Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ca42db9c4c43976…

MALICIOUS

PDF

60.6 KB Created: 2020-11-19 14:12:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 53e9eee31a4bc6f333a6327599b339c5 SHA-1: dbd5a1909d3ca6b0e52b4167d449fccd5d682328 SHA-256: 9ca42db9c4c43976ec19c9d7490730a7c0723545597832dd9dfaff8247d36fd9
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafffe.ru/strik?utm_term=world+map+hd+images+free+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4371267/normal_5f98c35768d7b.pdfIn PDF document text
    • https://gefeteki.weebly.com/uploads/1/3/4/3/134310298/47261d3d3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390374/normal_5faf5081a2097.pdfIn PDF document text
    • https://vomediwanuxorat.weebly.com/uploads/1/3/4/3/134327005/damuve_vuvefijurevo.pdfIn PDF document text
    • https://fomezesas.weebly.com/uploads/1/3/4/3/134343882/e208e3b8bce8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402963/normal_5fb275209560e.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/6f12d49a-8969-450e-8529-d8d35a7bbed5/msf_racing_components.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46122494-7310-49b1-85cf-3b714b6d801b/58773558445.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26a1eb0d-73e8-4a63-8156-ded706fb6f79/kimya_ve_enerji_C3A7C4B1kmC4B1C59F_sorular.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dc3f479-ff63-427d-9999-53d54c483407/citizen_eco_drive_wr100_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/02399e23-309d-4f71-98b9-e119073e75bd/devekotezazujosan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bec0cc5f-fafe-4c99-a0a1-cb83f78fc8cc/87072045055.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f6edd75-6cb8-4fcd-82ff-49750795a698/batukotuzix.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 7

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_off0000af1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAF1E 5560 bytes
SHA-256: 6a48f0dd389859785e072e3ea5978e60af821d1bf67f060a36a2e666c4f18db2
font_01_sfnt_off0000c1f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1F5 10472 bytes
SHA-256: c2458e52d59eed5f227436f9dc887051de493271bd6bf8aa92a91ab222f30734

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