Malicious PDF — malware analysis report

Static analysis result for SHA-256 dea3c874acbe88de…

MALICIOUS

PDF

74.9 KB Created: 2021-03-16 06:21:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: b3bc7f5dd0ed4bf5fd7438dd587d9b74 SHA-1: 9c4e598baf9dae8e8c11e97b228a64e20981b91a SHA-256: dea3c874acbe88deeff6652f80f2ac7599c6cc61d68101c5e2e2ea7dfaa7344f
104 Risk Score

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. It uses an urgency-based lure. 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 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
  • 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
  • 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://nipisod.ru/strik?utm_term=citizen+eco-drive+men%2527s+nighthawk+chronograph+watch+-+black PDF link annotation
    • http://usacreditcheck.info/fadumovilixedatc.pdfIn PDF document text
    • https://cdn.sqhk.co/zovitamojim/jihj2kU/wubajetigebuz.pdfIn PDF document text
    • http://im-marceting.site/92474099973favkq.pdfIn PDF document text
    • http://azorocheat5.xyz/30-day_indian_keto_recipesfj1zq.pdfIn PDF document text
    • https://cdn.sqhk.co/xoxujakosepa/ZSgiNjc/arjun_reddy_bgm_ringtone_pagalworld.pdfIn PDF document text
    • http://yesnutural.space/home_loan_repayment_calculator_excel_sheetn4c67.pdfIn PDF document text
    • http://effektzhizni.ru/323395309239gt6o.pdfIn PDF document text
    • http://reduslim-officialsite.site/my_immortal_free_piano_sheet_musicshzb6.pdfIn PDF document text
    • http://nipawifaxupus.mygamesonline.org/romodew.pdfIn PDF document text
    • http://efarbok.xyz/latest_diana_palmer_bookseyula.pdfIn PDF document text
    • http://pelistens.xyz/30060619078vexwy.pdfIn PDF document text
    • http://evatopshop.xyz/how_to_get_free_valorant_pointsp5ptz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/cairbar_schutel_livros.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/cet_key_answer_2018_chemistry.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/schindler_330a_controller.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/latest_bollywood_movies_2019_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/lunojol/79331069973.pdfIn PDF document text
    • http://piwolimosopobu.myartsonline.com/67228010806.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/likugav.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_off0000e3b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B2 5864 bytes
SHA-256: eed391e9ce66164aeff7f1f4e2af93923e71b3f03e2a425c76e8f8a9ade3126d
font_01_sfnt_off0000f7a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7A0 11868 bytes
SHA-256: 04e4885b9eeeac8ceb6d99cd1ae1325bf72e80b03c4ddb4a81ee76b5f22f6025

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