Malicious PDF — malware analysis report

Static analysis result for SHA-256 c02196544308e58a…

MALICIOUS

PDF

92.0 KB Created: 2021-02-17 20:28:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 8318333914688cd8a12fef061f933b84 SHA-1: a8bd8c68b0f79eac41a60fbf87fc189dd97a761c SHA-256: c02196544308e58a37f55c582943ef33947edd14481995a8cd1fff70fd4cbc7a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to disposable domains or redirectors, indicating a link farm or phishing attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to phishing or malware-hosting sites. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/strik?utm_term=how+to+turn+on+a+samsung+syncmaster+p2570hd PDF link annotation
    • https://cdn.sqhk.co/vopunokapire/dqIK4wO/homeschool_meme_covid.pdfIn PDF document text
    • http://ragexerate.22web.org/what_do_you_say_if_someones_dog_dies.pdfIn PDF document text
    • https://cdn.sqhk.co/xaranoraf/gjoihgy/demoju.pdfIn PDF document text
    • http://tijoxuxiga.iblogger.org/auto_tune_app_pc_free.pdfIn PDF document text
    • http://lupokixez.22web.org/36472639129.pdfIn PDF document text
    • http://bejuzoz.iblogger.org/how_do_i_fix_the_paper_feed_on_my_brother_printer.pdfIn PDF document text
    • https://cdn.sqhk.co/vedasukuki/d8Yghhy/59692387243.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://posazexemonepen.rf.gd/la_verne_ca_restaurant_guide.pdfIn PDF document text
    • http://puwagof.rf.gd/66278678793.pdfIn PDF document text
    • http://posijibanif.epizy.com/79279573099.pdfIn PDF document text
    • http://vatetore.epizy.com/22913163456.pdfIn PDF document text
    • http://gumigojozupe.epizy.com/vorejumopewolepojuwa.pdfIn PDF document text
    • https://s3.amazonaws.com/mevuzokekenojab/61122766968.pdfIn PDF document text
    • http://zalowakudedakov.rf.gd/pelegerotusigufam.pdfIn PDF document text
    • https://s3.amazonaws.com/fewifuwu/panudumobozule.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/lifopewolixipakatavi.pdfIn PDF document text
    • http://zilelinib.rf.gd/subject_pronouns_worksheet_2_spanish_answers.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C96 2884 bytes
SHA-256: ebc0c66205eecaa15b97408e97b4ca266c1ef79c221d6a066ab8c4dd73ae161d
font_01_sfnt_off000126d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126D5 6088 bytes
SHA-256: 0fa2efc5ea0bfbe12bbeeae06a33518b86115c9cad544c7c498fd7da2dbf4e28
font_02_sfnt_off00013b8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B8A 11320 bytes
SHA-256: e1d78ebbcd6a3d13ade5c9a87d442f39c1cd294001dde2fb3b148a373e1441f9

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