Malicious PDF — malware analysis report

Static analysis result for SHA-256 facaccaa393ba739…

MALICIOUS

PDF

67.8 KB Created: 2021-03-03 03:21:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7bddc4f25674c8097be450806c4a8f9c SHA-1: b852610fb6dbc6d294d52895db62855eb515d652 SHA-256: facaccaa393ba739b83a409ae4da6462e4873791f122e130278de4d085a2393b
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://vilenefex.ru/award?keyword=integrated+chinese+level+1+part+2+pdf+free PDF link annotation
    • http://tevojagi.iblogger.org/brochure_cover_page_templates_free.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/sowazuk.pdfIn PDF document text
    • http://zinuxuf.22web.org/normal_thoracic_spine_x_ray_report.pdfIn PDF document text
    • https://noregodexu.weebly.com/uploads/1/3/1/8/131871467/nowulamutogo.pdfIn PDF document text
    • http://ropufogesuzazeg.iblogger.org/fupimeseribuvokij.pdfIn PDF document text
    • https://gakatonigi.weebly.com/uploads/1/3/2/6/132681340/zijagisabuwakujegatu.pdfIn PDF document text
    • https://pilolekolaf.weebly.com/uploads/1/3/4/6/134655903/9965552.pdfIn PDF document text
    • http://mebevevi.mywebcommunity.org/93478158660.pdfIn PDF document text
    • https://busofixi.weebly.com/uploads/1/3/4/5/134576252/098be8f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://beranaja.epizy.com/the_lion_the_witch_and_the_wardrobe_chapters_5-8_summary.pdfIn PDF document text
    • http://lanotiwigizoxep.epizy.com/new_2018_lipid_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/lixitufekeke.pdfIn PDF document text
    • http://bunisanabasa.epizy.com/bus_game_for_pc_windows_10.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/brushes_redux_user_guide.pdfIn PDF document text
    • http://vesedakowata.onlinewebshop.net/new_criticism_features.pdfIn PDF document text
    • http://nuduvemomuto.epizy.com/miniature_dachshund_puppies_for_sale_ca.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/bobofujakaravelak.pdfIn PDF document text
    • http://kufuwajasuge.rf.gd/66923378605.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/caucasian_chalk_circle_full_play.pdfIn PDF document text
    • http://vemusimovoxodan.rf.gd/wifowe.pdfIn PDF document text
    • http://waraxiv.rf.gd/permutations_and_combinations_worksheet_kuta.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_off0000cd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD6A 5596 bytes
SHA-256: 3714a953e48ae43a556d848715d7a084e70c00ce18db625626f78520bc4575de
font_01_sfnt_off0000e081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE081 9668 bytes
SHA-256: 2e6e6e64dc854a40b84c0d368e9b1894dab7b079131a18b91599bf54edbbd2e8