Malicious PDF — malware analysis report

Static analysis result for SHA-256 9924d1125db97920…

MALICIOUS

PDF

70.8 KB Created: 2021-03-04 06:34:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 99941d368fe60c2ffd16a173d9e8eabd SHA-1: 2adad2d64d73d1bef189f14d448c80a028bab1e3 SHA-256: 9924d1125db97920d000e3b687c94d4fec05d62ef03e2109a1bbeb75abf70f96
126 Risk Score

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
  • 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://golowaki.ru/award?keyword=isocrates+against+the+sophists+perseus PDF link annotation
    • https://cdn.sqhk.co/fexilejedit/yebihNn/75554186481.pdfIn PDF document text
    • http://forajadafogaxuv.medianewsonline.com/what_does_the_mark_of_cain_symbolize.pdfIn PDF document text
    • http://sipipewawezizuf.getenjoyment.net/55045474727.pdfIn PDF document text
    • http://tonerinkstore.com/uc_browser_java_nokia_x2hx2un.pdfIn PDF document text
    • http://daimontimur.org/can_b_positive_blood_type_eat_turkey8ryxn.pdfIn PDF document text
    • http://keep-travel.com/cursive_handwriting_practice_worksheet47itw.pdfIn PDF document text
    • http://stat-index-co.com/wixurugijutijp3m.pdfIn PDF document text
    • https://faloxumotib.weebly.com/uploads/1/3/4/6/134646793/027690369a3b4c.pdfIn PDF document text
    • http://mon-cmso.best/nietzsche_for_dummiesbkh3g.pdfIn PDF document text
    • http://linavaluviriv.getenjoyment.net/kixebevogesike.pdfIn PDF document text
    • http://strita.space/accident_reporting_centre_burlington_ontario5bqwb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fugewep.rf.gd/grade_9_math_circle_geometry_worksheets.pdfIn PDF document text
    • http://pezefaxovojole.atwebpages.com/business_management_research_proposal_sample.pdfIn PDF document text
    • http://gobusef.rf.gd/kisaxowisofepemabipuk.pdfIn PDF document text
    • http://dakovupogoz.rf.gd/wobugulerogusupuvav.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_off0000d1f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F8 5100 bytes
SHA-256: 3847b7e0dbefefbfd180e57fbf89ca4b9e7bb036b1de0c7b6083b10b008b905b
font_01_sfnt_off0000e34d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE34D 13416 bytes
SHA-256: a863478fab412c43db8d64dd046dbce1aa5bbb00a8bc332d7c56211c4bd7afbc