Malicious PDF — malware analysis report

Static analysis result for SHA-256 06c0e7d9c6d652ee…

MALICIOUS

PDF

78.1 KB Created: 2020-12-30 01:43:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8b483c3bda614d492eb771d2c1be6bcf SHA-1: d942844eaa3219e4771c4e807c2ccb2ab9a483c8 SHA-256: 06c0e7d9c6d652eec27a6301293acea75eac1c8958a60bc4c90b63d26313bac1
162 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://gettraff.ru/strik?utm_term=no+crop+video+editor+instagram+online'. This URL is likely used to redirect the user to a phishing page or a malware download. The ML classifier also strongly flagged this PDF as malicious, and ClamAV detected it as 'Pdf.Phishing.Trojan'. The document body contains a lure related to 'no crop video editor instagram online' and urgency language, supporting a phishing or scamming attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=no+crop+video+editor+instagram+online
    • https://static.s123-cdn-static.com/uploads/4469633/normal_5fe16ca6b8355.pdf
    • https://cdn-cms.f-static.net/uploads/4403140/normal_5fbd8a782ef2d.pdf
    • https://cdn-cms.f-static.net/uploads/4367004/normal_5f9250732a9ae.pdf
    • https://cdn-cms.f-static.net/uploads/4366987/normal_5f894e687573f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/legobegutulo/36371385674.pdf
    • https://uploads.strikinglycdn.com/files/968cf382-8e05-445d-b34f-2c88d399a1a7/gorukebibodukexotamo.pdf
    • https://uploads.strikinglycdn.com/files/b03bbf79-d46b-462e-b1d8-a45ca30d69c4/gta_vice_city_free.pdf
    • https://s3.amazonaws.com/kofabube/wibate.pdf
    • https://s3.amazonaws.com/libowebujakux/ebay_app_android_invalid_request.pdf
    • https://uploads.strikinglycdn.com/files/2f5c5c9b-8ac4-41c0-b059-aec994c26aad/getafonotilumikokebadoti.pdf
    • https://uploads.strikinglycdn.com/files/3fd23938-48d3-4954-a802-8677283040c0/a_young_peoples_history_of_the_united_states_free_download.pdf
    • https://s3.amazonaws.com/pevarijidasalop/content_analysis_and_thematic_analysis.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbd2.bin
f57e1e783e569ec0332689164f60bd87663a62c3c38474927eca3001810f26c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDBD2 5424 bytes
font_01_sfnt_off0000ee37.bin
c79230db23590b5d1fa38064ae9a18cdf7dedc9329b72f78d2b7aeec2787c48a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE37 11576 bytes
font_02_sfnt_off000115eb.bin
ca169d226e7270d6c57da5eee88bbe599419370be5c4aeb7f8bffd21c6857157		 pdf-font-stream PDF embedded font (sfnt) at offset 0x115EB 16196 bytes

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