Malicious PDF — malware analysis report

Static analysis result for SHA-256 843bb7a59155fb7f…

MALICIOUS

PDF

295.6 KB Created: 2022-05-24 06:08:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-01
MD5: 72ecd86448d139b76112813c60ec6abc SHA-1: 6a56c5f3cf2a60c5353deab651a96fea316cf61e SHA-256: 843bb7a59155fb7fe483191e1fa2550880f9b58d7f5ccfa97f44b5ec5c4bec44
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6517

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
  • 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://loheb.co.za/XSRYdR1H?utm_term=how+to+maintain+stock+in+tally+erp+9+pdf+notes+free+online PDF link annotation
    • http://ajeah-intl.org/fck_image/file/joxexine.pdfIn PDF document text
    • https://diboboxu.weebly.com/uploads/1/3/4/3/134330346/732356c0a2c06f9.pdfIn PDF document text
    • https://vamoketuvet.weebly.com/uploads/1/3/3/9/133999376/rivilenon_bolanopubo.pdfIn PDF document text
    • https://pikupazu.weebly.com/uploads/1/3/4/5/134577858/d794b201.pdfIn PDF document text
    • https://jojipizi.weebly.com/uploads/1/3/1/6/131606457/piduvale.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1622b21a791dcf---88241541454.pdfIn PDF document text
    • https://kosopewoxi.weebly.com/uploads/1/3/5/3/135318270/4321408.pdfIn PDF document text
    • https://zosugekametow.weebly.com/uploads/1/4/1/2/141278972/f7480639fe2f.pdfIn PDF document text
    • https://xobijetulotifo.weebly.com/uploads/1/3/4/2/134234675/4953864.pdfIn PDF document text
    • https://zumefegipim.weebly.com/uploads/1/3/4/6/134609591/3275113.pdfIn PDF document text
    • https://xovajuvomupug.weebly.com/uploads/1/3/0/7/130776021/mukowademeliseroxe.pdfIn PDF document text
    • http://travelsolutions.co/ckeditor/kcfinder/upload/files/69334898173.pdfIn PDF document text
    • https://lopadedabebaf.weebly.com/uploads/1/3/4/8/134897987/b970fd5aa11e9fe.pdfIn PDF document text
    • https://tugagifozige.weebly.com/uploads/1/3/4/2/134265986/tomutalakinuzujo.pdfIn PDF document text
    • https://rupunapu.weebly.com/uploads/1/3/4/3/134354814/cf9256b316dfc.pdfIn PDF document text
    • https://exprescredit.md/userfiles/file/mavevemizitevugufeperubib.pdfIn PDF document text
    • http://hebammenglueck.de/ckfinder/userfiles/files/zopudodogup.pdfIn PDF document text
    • https://sujobedudilofu.weebly.com/uploads/1/4/1/8/141879139/2577799.pdfIn PDF document text
    • https://nugaramavamog.weebly.com/uploads/1/3/4/3/134320686/dusasetewufa-fetem-dulinabolufu-silaworapoma.pdfIn PDF document text
    • http://optikametuje.cz/userfiles/file/xexeretilasawoz.pdfIn PDF document text
    • http://www.gigpursuit.com/app/webroot/upload/files/zivuruderowaludaw.pdfIn PDF document text
    • https://witerimapiw.weebly.com/uploads/1/3/4/5/134599407/9022038.pdfIn PDF document text
    • https://wosobariwosamu.weebly.com/uploads/1/3/4/3/134372044/2819817.pdfIn PDF document text
    • https://www.edaas.com.tr/admin/kcfinder/upload/files/mabis.pdfIn PDF document text
    • http://redeyeldn.com/userfiles/file/65189598252.pdfIn PDF document text
    • https://xelinibi.weebly.com/uploads/1/3/0/7/130739371/698149.pdfIn PDF document text
    • http://slhospital.com/upload/fckeditor/file/rivuwodovajexavuwega.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_off00042f67.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00042f67.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00042f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42F67 11232 bytes
SHA-256: be1a0dfa47ac4d5252bdc168bea3c6d72c8bee0db4376aca6ae5c7895b606c9a
font_01_sfnt_off000449c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x449C5 17148 bytes
SHA-256: 3fcc3bc085ad1a917e17c33802378727c8d0849a6ffaf53265597f7a5954d5eb
font_02_sfnt_off000476a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x476A7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1