Malicious PDF — malware analysis report

Static analysis result for SHA-256 03bb5955ca0923dd…

MALICIOUS

PDF

70.0 KB Created: 2021-03-28 16:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 62f6867b3479b4b70b6cfac9be39082e SHA-1: c11366effe1c2bfb50941c92eef7f5a82eae9817 SHA-256: 03bb5955ca0923dd36bb5aad8257f24f5cd7695f06072d6d28d6129ed88be8aa
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 0.9996

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://golowaki.ru/123?utm_term=dadar+weather+report PDF link annotation
    • http://xabibumat.iblogger.org/definition_of_forms_of_business_organization.pdfIn PDF document text
    • http://tokivaburag.22web.org/64643911136.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/pibajuwi/58394773299.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/andrew_james_flexible_food_dehydrator_sheets.pdfIn PDF document text
    • http://xekifefo.rf.gd/galodonawotijofebegu.pdfIn PDF document text
    • http://jekidosokun.epizy.com/fractions_decimals_and_percentages_equivalents_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/131c96f8-d94f-459f-b1a8-43b592f7d42e/83986956025.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/654102cc-2a25-45fd-af9c-37e6e0a266d1/freak_the_mighty_conflict.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/29483464135.pdfIn PDF document text
    • http://dolifusekaxug.epizy.com/blood_relation_questions_with_answers_in_tamil.pdfIn PDF document text
    • http://rubidolad.epizy.com/introduction_email_template_to_client.pdfIn PDF document text
    • http://xafafomuripag.epizy.com/52480950012.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/92ae82c6-4c5c-4f72-900c-a2edd01a87b4/wajagidafokusemedudanos.pdfIn PDF document text
    • https://s3.amazonaws.com/pegozegi/av_malformation_mri_protocol.pdfIn PDF document text
    • http://merubif.rf.gd/xugabewigiwenidipijoba.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/9247481237.pdfIn PDF document text
    • https://s3.amazonaws.com/zuniverijesud/binibivifuwuwufufomasukus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb1bb7d1-f9b2-4941-8b5d-cc22a41db693/nusine.pdfIn PDF document text
    • https://s3.amazonaws.com/bejideba/cannot_read_property_of_undefined_angular_form.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/classification_2_biology_form_3_notes.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/manizojalafezono.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb82f22d-42e2-4513-b1df-656ff49d3664/dowofozupax.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_off0000d531.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD531 4928 bytes
SHA-256: 6a458f3052d047ecad400b3a853f1d08772a11457af5191ca35227b1a95313a7
font_01_sfnt_off0000e609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE609 10284 bytes
SHA-256: 7237522d9ba2f63e73ac6bbf60b8ed2bc210c2c1c1bf566900a9e6d43441ef96

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