Malicious PDF — malware analysis report

Static analysis result for SHA-256 4566a6f058a8ecc1…

MALICIOUS

PDF

72.7 KB Created: 2021-03-03 06:29:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: fa0a272b1af1c9ead6f5b9643897f2f7 SHA-1: 5c365986f73e54bbf89352fcc2fe8afd665fa177 SHA-256: 4566a6f058a8ecc1a68ad6c72a4c3bf9e8edda3b9ddca9b7f778cbd9afd7f6f8
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest an attempt to redirect the user to a malicious resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/strik?utm_term=barron%2527s+ap+physics+1+and+2 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4454430/normal_5fd63ec14e536.pdfIn PDF document text
    • https://cdn.sqhk.co/wodaximewule/hpxhdha/paralyzed_lyrics_the_used.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/dbx_driverack_260_manuale_italiano.pdfIn PDF document text
    • http://fawikenaxalu.scienceontheweb.net/good_transition_into_first_body_paragraph.pdfIn PDF document text
    • https://cdn.sqhk.co/kisasizaro/jfnjeid/events_and_adventures_dallas_cost.pdfIn PDF document text
    • http://desokore.medianewsonline.com/fuxaxogijolutejexan.pdfIn PDF document text
    • https://cdn.sqhk.co/mowanideju/ghmv7jc/77072889220.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/jhijbhg/58400069738.pdfIn PDF document text
    • https://cdn.sqhk.co/kixikeli/qdYhgOi/current_arsenal_transfer_news_live_goal_com.pdfIn PDF document text
    • https://cdn.sqhk.co/tosijoxopum/ffJhcjj/airline_tycoon_games_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://genividi.epizy.com/chick-fil-a_nutrition_calorie_counter.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/56503931838.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/almost_synonym_informal.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/6477979145.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_off0000df87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF87 5496 bytes
SHA-256: 8912b1aece38f0078737d2ade4394259bf3512f3d6fcca233a83ba588601a8a3
font_01_sfnt_off0000f249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF249 10532 bytes
SHA-256: 16fa67eed9891ed931a6b607b06f83a8c768239f5fdd7bc9a1761b18c54e30e0

Open this report in the interactive analyzer, or submit your own file for analysis.