Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a9b6f6656fd2e75…

MALICIOUS

PDF

79.4 KB Created: 2021-03-19 22:26:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: ea35ab70450e84cc87cdfdcc0fb4df79 SHA-1: 5b3ab7029cee953cbfe2489bd4dec0ca823ab569 SHA-256: 7a9b6f6656fd2e75c0560464945aba537d2ce964cd36d5c38d47bbfeb0edb610
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 0.9998

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://baarspo.ru/wix?keyword=what+does+motion+media+mean+in+court PDF link annotation
    • http://winoraama.site/sports_coaching_psychology_definitionedfui.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414335/normal_6003340dbdbaf.pdfIn PDF document text
    • http://gemofesane.medianewsonline.com/98185493463.pdfIn PDF document text
    • http://tozofuji.scienceontheweb.net/search_engine_definition.pdfIn PDF document text
    • http://cparta.moscow/793691458121madh.pdfIn PDF document text
    • http://gezetola.scienceontheweb.net/vikoxopekelebomaxu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403948/normal_604cf049872d1.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/zerejibixupav/nibazapam.pdfIn PDF document text
    • http://rurebafib.onlinewebshop.net/ornamental_fish_farming_book.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dd79bc4-e5a5-4aff-a836-826210875911/nodozimijizologi.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/cartoon_print_single_bed_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95874eb1-2845-4e8a-9bbe-b0b860089590/world_war_z_2020_gameplay.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c0eac24-f552-46ee-a3ae-5274911a30f9/what_does_it_mean_to_dream_about_snake_laying_eggs_in_my_bed.pdfIn PDF document text
    • https://s3.amazonaws.com/kewuxejikiwe/kodiak_island_bear_guides.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/central_venous_catheterization.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/conclusion_of_project_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f8d34b0f-cd96-4f5e-9c6c-2f5f502f9f9e/5_paragraph_opord_example.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_off0000fbac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAC 5160 bytes
SHA-256: 2e22930ed74330180167b2e6f5c92e5bd16dafff9b81d7c637d246d90bac92fd
font_01_sfnt_off00010d13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D13 10376 bytes
SHA-256: cc84d29c0af53eeec0216086d7eb8d28159386ae041570823441ad876374d384

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