Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ba63f84d62d0a6f…

MALICIOUS

PDF

71.0 KB Created: 2021-02-17 23:31:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 52e7d832057f048a65310c37b702343e SHA-1: 03339030901515b08858328e56457fea9d0ddb6d SHA-256: 2ba63f84d62d0a6f63b476f908f1f965169f37fbfe0cbcec8dddeca781e5e7a4
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wix?keyword=macbeth+act+3+test+answers PDF link annotation
    • http://wozufilugud.iblogger.org/74091040594.pdfIn PDF document text
    • https://venolebibu.weebly.com/uploads/1/3/5/3/135348563/9665491.pdfIn PDF document text
    • https://teriwogawuf.weebly.com/uploads/1/3/2/8/132815342/fowadif_gamoxim_widutugosiraro_runevuvakonukok.pdfIn PDF document text
    • https://kotazadan.weebly.com/uploads/1/3/4/3/134349323/nexunuzos_zonejinuxiwin_jidejanaw.pdfIn PDF document text
    • https://zewerigavuj.weebly.com/uploads/1/3/2/6/132681779/990413.pdfIn PDF document text
    • https://widajuzuno.weebly.com/uploads/1/3/1/6/131637349/6744000.pdfIn PDF document text
    • https://fasexunatosupa.weebly.com/uploads/1/3/1/6/131606354/f00c45e2ffb3.pdfIn PDF document text
    • http://falisekivi.iblogger.org/anbe_sivam_full_movie_tamilrockers.pdfIn PDF document text
    • https://tojewenegekov.weebly.com/uploads/1/3/4/5/134502344/34956fb848c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://taguramol.rf.gd/kolujomejujokuvij.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/77620816027.pdfIn PDF document text
    • https://s3.amazonaws.com/kafises/halide_edip_advar_ateten_gmlek_indir.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/kozuwakosojufojeg.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/jacob_eason_nfl_scouting_report.pdfIn PDF document text
    • https://s3.amazonaws.com/liwafo/makesakoxifofegi.pdfIn PDF document text
    • http://maturar.rf.gd/moviescounter_saaho_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/votawawo/kindergarten_subtraction_worksheets.pdfIn PDF document text
    • http://dulefuzobov.rf.gd/23110656231.pdfIn PDF document text
    • http://gazosaka.epizy.com/determination_of_equilibrium_constant_lab_report_discussion.pdfIn PDF document text
    • https://s3.amazonaws.com/meludav/ceo_up.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_off0000d92f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD92F 5256 bytes
SHA-256: 3ff174657c0c0f8da0af20dd7d0016dd477a85bc29ef8b793ed0225aaabdaa87
font_01_sfnt_off0000eb27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB27 10600 bytes
SHA-256: e0aa620489676b666e0e5b3bbe99d4efcd0528d20577e00049214f08199d72d3