Malicious PDF — malware analysis report

Static analysis result for SHA-256 659e88a92d853ab8…

MALICIOUS

PDF

73.9 KB Created: 2021-03-12 13:40:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 758b287327ecc5ffe7b5851cc0c87272 SHA-1: 877d1da828348785c603040869158256715a78c7 SHA-256: 659e88a92d853ab866e628d5bedeaf88161608737c1fccc0eba3fafd1b5da1f0
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://mezovuduw.ru/wix?keyword=one+of+argentina%2527s+main+exports PDF link annotation
    • https://cdn.sqhk.co/kazipexe/1jc7hdV/59060118748.pdfIn PDF document text
    • https://cdn.sqhk.co/rivinodati/4idhgdM/88002869067.pdfIn PDF document text
    • https://zawibovime.weebly.com/uploads/1/3/2/6/132681883/6512184.pdfIn PDF document text
    • https://cdn.sqhk.co/gixelotopa/eChbTv7/best_life_quotes_for_whatsapp_status_in_english.pdfIn PDF document text
    • http://tubudemawaxoki.iblogger.org/25233065296.pdfIn PDF document text
    • https://tasozowi.weebly.com/uploads/1/3/4/3/134315408/7228815.pdfIn PDF document text
    • http://xamoxipuwizutux.scienceontheweb.net/91747908515.pdfIn PDF document text
    • http://motarojetox.sportsontheweb.net/sociological_approach_in_literary_criticism.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/mujesogi/c_g_sheet_metal_installment_inc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0027ad6-2eb6-47a3-ae03-d14f91bac301/68248173145.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/tawapod.pdfIn PDF document text
    • http://zegiwewezenaro.myartsonline.com/8808205793.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/free_budget_calculator_excel_spreadsheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf393786-a39b-4cca-8268-87ad08b55904/85459079024.pdfIn PDF document text
    • https://s3.amazonaws.com/wizuluworafid/61286368222.pdfIn PDF document text
    • http://konomubexidop.epizy.com/38649021818.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af1a388f-17af-4246-b61e-2f8fcd05d17c/varig.pdfIn PDF document text
    • http://bobumevemi.epizy.com/nalosamafad.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_off0000e1b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B1 5316 bytes
SHA-256: 8e05d361d91c56ef004946bff9655f9f65fb3a54728a97eb94b6476181aeb053
font_01_sfnt_off0000f3c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3C3 10984 bytes
SHA-256: 72a925066bdc877ac4712b029f681278453ffedfec9efc99719093bf40c4da26