Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0c05baf68b6628b…

MALICIOUS

PDF

358.5 KB Created: 2022-03-13 11:51:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: ee649774eb393326c4f67fd27f69fb52 SHA-1: 914cbdd52c2d76f86ccc1d5055510a497bd3b118 SHA-256: c0c05baf68b6628b6d0e73bd179569a32d71a8faaf597a24fdce2d18f1a1eece
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6641

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. 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 http://lev-steklo.ru/userfiles/file/80147644864.pdf In PDF document text
    • https://drivetripper.com/userfiles2020/files/zenusat.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/0d0d4212d66d588ee37cb2605402cc61/5766339613.pdfIn PDF document text
    • http://hurtmar.pl/Upload/file/luropativagodawepikisufa.pdfIn PDF document text
    • http://newpacksy.com/admin/kcfinder/upload/files/puroz.pdfIn PDF document text
    • https://valstybestarnyba.com/upckfinder/files/gekulolugomidagezogib.pdfIn PDF document text
    • http://panelko.hu/files/files/buzinoxezedimur.pdfIn PDF document text
    • http://itcbeautytrainingschool.com/userfiles/file/82225690082.pdfIn PDF document text
    • http://chretkinia.pl/userfiles/file/50774265932.pdfIn PDF document text
    • http://ancheng-medical.com/uploadfile/files/mezakarufetunobob.pdfIn PDF document text
    • https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/23e267e762757eb9ef59e984eb6437f7/20011213229.pdfIn PDF document text
    • http://seatraderhk.com/userfiles/sijuvugeja.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16225f1e1b6534---nakisijimagozosa.pdfIn PDF document text
    • http://cartopack.com/Images/file/besedipivoxunatare.pdfIn PDF document text
    • https://zenithoverseas.com/assets/userfiles/files/84852457050.pdfIn PDF document text
    • http://monikaknoblochova.com/userfiles/file/fukibegesizuvimagu.pdfIn PDF document text
    • http://nextgenship.net/upload/file/20220307164665942895.pdfIn PDF document text
    • http://spprp.pl/userfiles/file/xalokujikoj.pdfIn PDF document text
    • http://kultura-vyazniki.ru/sites/default/files/file/34109616312.pdfIn PDF document text
    • http://hnhappiness.com/d/files/zebamosofemat.pdfIn PDF document text
    • http://princeworldwide.com/multimedia/userfiles/file/pozebolowijubej.pdfIn PDF document text
    • http://polesprogettazioni.com/userfiles/files/42294252981.pdfIn PDF document text
    • https://rivieresoceanie.com/userfiles/file/zuwulodawixukerixuje.pdfIn PDF document text
    • http://djpress.pl/Image/files/misafujamivenozuvam.pdfIn PDF document text
    • https://thietbixaydungcantho.com/canthomobile2/public/images/sanpham/files/sumiguteniteb.pdfIn PDF document text
    • http://cukrarnakolbaba.eu/obrazky/files/pirukegogaveratobeji.pdfIn PDF document text
    • http://zoldjogsi.hu/uploads/files/verarowavugonodixigada.pdfIn PDF document text
    • https://mysmartedu.com/uploadimages/files/jabofofaremoget.pdfIn PDF document text
    • http://www.immo-uno.com/ckfinder/userfiles/files/kumutupaxosekevom.pdfIn PDF document text
    • http://nowator-zpu.pl/userfiles/file/mozabu.pdfIn PDF document text
    • http://needychild.org/ckfinder/userfiles/files/16479015658.pdfIn PDF document text
    • https://yoyep.co.za/XSRYdR1H?utm_term=chemistry+2019+answer+key+karnatakaPDF link annotation
    • http://axiomestates.com/userfiles/file/xujunudekuvalidok.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://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off00052a4c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00052a4c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052a4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52A4C 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00054167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54167 18076 bytes
SHA-256: bc2e1adc881ada98452d8aae04e05f01d65874cfa6172ab1e0192bb76632750f
font_02_sfnt_off00056f46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56F46 10992 bytes
SHA-256: c9f58521c96c59795c69140982e86b94cd74151ae5e050676011948d5890bc44