Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb8a9929a574e3b5…

MALICIOUS

PDF

81.9 KB Created: 2022-04-16 20:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-09
MD5: 1102c6f94e86d26990b1edd6b698d353 SHA-1: 21aa8e843cf5f3a85f3078910729fef7c6e3d17f SHA-256: cb8a9929a574e3b592c8871457d4976e9ad2b106c658874c80748cb8f2f728e8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

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://todifafox.weebly.com/uploads/1/3/4/3/134329955/58da0c007db74d.pdf In PDF document text
    • http://bluestandard.pl/ckfinder/userfiles/files/6198149687.pdfIn PDF document text
    • http://epodhajska.eu/UserFiles/File/41993948825.pdfIn PDF document text
    • https://gaxizizobepebi.weebly.com/uploads/1/3/0/7/130740618/8042808.pdfIn PDF document text
    • https://tavutapakewig.weebly.com/uploads/1/3/5/3/135399939/4981549.pdfIn PDF document text
    • https://www.governancaparaobrasil.com.br/kcfinder/upload/files/4630714148.pdfIn PDF document text
    • https://vuzozemipasu.weebly.com/uploads/1/3/6/0/136051601/pituvowun.pdfIn PDF document text
    • http://ah-taihe.com/upload_fck/file/2022-2-12/20220212122127922686.pdfIn PDF document text
    • https://wfbulgaria.com/uploads/wysiwyg/files/63367568408.pdfIn PDF document text
    • http://www.clinicainthera.com.br/kcfinder/upload/files/58500127285.pdfIn PDF document text
    • https://ntm.mcapps3.cz/multimedia/file/sifixosanutebanonidubib.pdfIn PDF document text
    • https://indicaperu.com/userfiles/file/diwofegofakipowi.pdfIn PDF document text
    • http://potya.com/74943073520.pdfIn PDF document text
    • https://tiguan-wiki.ru/file/50793710427.pdfIn PDF document text
    • http://futuralagoparking.eu/userfiles/files/jixegided.pdfIn PDF document text
    • http://chromoink.com/updates/file/59643486940.pdfIn PDF document text
    • https://hainutedecopii.eu/ckfinder/userfiles/files/bipulafuk.pdfIn PDF document text
    • http://on-video.com/movies/movie_data/file/78154866604.pdfIn PDF document text
    • http://htwy.com/upload/file/xokusujuruxefaxarozuf.pdfIn PDF document text
    • http://terwaarde.be/ckfinder/userfiles/files/50647815143.pdfIn PDF document text
    • https://dolaxigawodibeg.weebly.com/uploads/1/4/1/3/141316812/mazatelejotad_raguw_jojuful.pdfIn PDF document text
    • http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/16204f61e4171c---4202545965.pdfIn PDF document text
    • http://studioego.cz/userfiles/file/82660225044.pdfIn PDF document text
    • https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/81865ca5fcf8b307ef1554ab131b531c/42164709461.pdfIn PDF document text
    • http://lesybb.sk/userfiles/file/28297576693.pdfIn PDF document text
    • https://dolupin.com/calisma2/files/uploads/7834395619.pdfIn PDF document text
    • https://lovig.co.za/YmrXLWy8?keyword=things%20that%20are%20illegal%20in%20the%20united%20statesPDF link annotation
    • 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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off0000dcf1.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000dcf1.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF1 10468 bytes
SHA-256: 401b8faf65f3e0d6580fc9cfa5de72f4ba8faea1c31ca93f84d43e57faa63866
font_01_sfnt_off0000f466.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF466 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010c78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C78 17512 bytes
SHA-256: 380ddf5b66264aeed51dd57a392cd6a82fa19ee3a818930ce715fbe5684ca0b2