Malicious PDF — malware analysis report

Static analysis result for SHA-256 26f7648b96f3dd40…

MALICIOUS

PDF

417.0 KB Created: 2021-12-18 13:37:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-18
MD5: 352903fae8ba58e8005318ee869a924c SHA-1: fb867acf907ab1b81e906578192bc30f334b682c SHA-256: 26f7648b96f3dd407ba3fe92ee5723ab3216c0f31e72d55a29a8724c3d29ccb8
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4866

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 https://stopserv.ru/files/file/ninibex.pdf In PDF document text
    • https://ikincielinmak.com/upload/ckfinder/files/goxufe.pdfIn PDF document text
    • https://mangonebike.com/uploads/file/miposifakorozijasex.pdfIn PDF document text
    • https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/dfaba527ab91abcf304213e114ea1823/38447161989.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617a4bc5707cf---70158599272.pdfIn PDF document text
    • http://thuonghieutoancau.vn/uploads/files/92071348770.pdfIn PDF document text
    • http://pnc21.com/files/fckeditor/file/101031791861692be25ace9.pdfIn PDF document text
    • http://www.vegagastro.pl/upload/file/jidibonenevuxododiba.pdfIn PDF document text
    • http://abwalabamaave.com/uploads/files/vobomexufadoxatezoke.pdfIn PDF document text
    • http://wannawwannie.pl/userfiles/file/bisutalim.pdfIn PDF document text
    • https://www.irisgroupbd.com/templateEditor/kcfinder/upload/files/7360369393.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613e4ce752dbc---90715343200.pdfIn PDF document text
    • http://timnhanhonline.com/upload/files/72861051297.pdfIn PDF document text
    • https://magnanelli.com/userfiles/file/jafoberuxetoxulowixoke.pdfIn PDF document text
    • http://tokstar.com/_UploadFile/Images/file/32660131633.pdfIn PDF document text
    • http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/161b8d313c380e---39048944554.pdfIn PDF document text
    • https://vildmarksjagt.dk/userfiles/file/57202540934.pdfIn PDF document text
    • http://rhondachem.com/d/files/3847302421.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614320368c402---82124800408.pdfIn PDF document text
    • http://apothepharma.com/upload/files/vavonisodiruxakazamunavin.pdfIn PDF document text
    • http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16136a2d472311---gugujimo.pdfIn PDF document text
    • https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/3f1f0142ed52c709ec5d4ce844ad67be/lamowijolonilamoteti.pdfIn PDF document text
    • http://lanaecoloridabruzzo.it/userfiles/file/71975530598.pdfIn PDF document text
    • http://studiosimonepantaleo.it/userfiles/files/kosejusixaj.pdfIn PDF document text
    • http://rhythm-thailandagent.com/attach/file/mosazomepifukuk.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/u-9XGpgKpwY/uplcv?utm_term=xbox+live+codes+generator+2020PDF 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_off00061457.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00061457.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00061457.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61457 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off00062afb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AFB 11104 bytes
SHA-256: e689fe50816c75a32f68ed32df3dec1b92af444ba6b768c21da605d991afd55b
font_02_sfnt_off000644d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644D1 18416 bytes
SHA-256: 91e6bc5806106cb49a65873d01d3790e46aba30cbdf9016e135316a54788f260