Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6b6cda96fa64de…

MALICIOUS

PDF

81.0 KB Created: 2021-09-14 01:10:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: db3cdec2f16514a1eca960de309e2490 SHA-1: 8f88c15ab93214d1b46b19c401633eb7a9e496b6 SHA-256: 2b6b6cda96fa64de3914c7777728e3c13a6ca9b1f340f8798c7221cebcaef0e9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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://krisoc.ru/uplcv?utm_term=puente+rectificador+pdf PDF link annotation
    • https://mmgrowersg.com/ckfinder/userfiles/files/fofurefefelewoz.pdfIn PDF document text
    • https://mb-classic-service.de/userfiles/file/xatubex.pdfIn PDF document text
    • https://heart-calligraphy.com/uploads/files/202109042254037756.pdfIn PDF document text
    • http://udelimpa.es/ckfinder/userfiles/files/45981122972.pdfIn PDF document text
    • https://www.privathospitaletkollund.com/ckfinder/userfiles/files/37146794918.pdfIn PDF document text
    • https://autohausnschmidt.de/userfiles/file/kinamesane.pdfIn PDF document text
    • http://telesson.net/_UploadFile/Images/file/dotaxozoxew.pdfIn PDF document text
    • http://metallpress.info/files/xofojam.pdfIn PDF document text
    • https://osikovo.eu/webroot/img/content/files/75069256823.pdfIn PDF document text
    • http://brianhaymore.com/images/e/file/zenakejizoxifixirudemaz.pdfIn PDF document text
    • https://blnk.eu/userfiles/files/jusazufeto.pdfIn PDF document text
    • http://www.thunderesp.com/ckfinder/ckfinder.htmlfiles/wabovuv.pdfIn PDF document text
    • http://xn--80aikni6a0b.xn--p1ai/images/file/63726811535.pdfIn PDF document text
    • http://aptekarynek.pl/zdjecia/fck/file/26426956343.pdfIn PDF document text
    • https://perfecthospitals.org/FCKeditor/file/31226066555.pdfIn PDF document text
    • https://educationindiajournal.org/ckfinder/userfiles/files/61444283574.pdfIn PDF document text
    • http://cybernet.asia/UserFiles/File/firedovomajipux.pdfIn PDF document text
    • http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613870d7a121a---jovumukonabesududuwela.pdfIn PDF document text
    • http://baracenter.be/userfiles/file/zikutibuwojajutirugojo.pdfIn PDF document text
    • https://clubkdo.fr/img/pics/files/gefubafakejanebuwenuw.pdfIn PDF document text
    • http://innospectrum.eu/hirlevel/file/69626805373.pdfIn PDF document text
    • https://kit-veron.my/ckfinder/userfiles/files/22072546703.pdfIn PDF document text
    • http://hoanhaochemical.com/uploads/files/rifonunupu.pdfIn PDF document text
    • http://atletika-pardubice.cz/files/file/77816572895.pdfIn PDF document text
    • http://paramountswimwear.com/userfiles/files/dojabizavibifomizini.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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d71b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD71B 18276 bytes
SHA-256: 8a7e05858068fc99d60a0ca87b7311d90c88d68278f1944eb11a8e89a789da8b
font_01_sfnt_off0001061a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1061A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011e31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E31 10500 bytes
SHA-256: 72f692d4ee1e7f45ea021126c9bd0e69cdb57a08ef7959be677bac1d3b7f0f3b

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