Malicious PDF — malware analysis report

Static analysis result for SHA-256 f14ebce77b927744…

MALICIOUS

PDF

92.5 KB Created: 2021-08-16 06:12:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-04
MD5: 7000467db39f32528d5086e4852620e4 SHA-1: 025f16373433ce656f74b38a573c4453f28dfb36 SHA-256: f14ebce77b9277441c31c5da6eba27fc96bb27dcbac0c0adc834d08272edb83b
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a link farm with numerous URLs pointing to compromised WordPress sites and disposable hosting, suggesting an attempt to redirect users to malicious content. While no scripts were explicitly extracted, the presence of external links and the nature of the heuristics indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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
  • 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.
  • 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://primer-spb.ru/files/files/kojibifavasum.pdf In PDF document text
    • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/3f6b6b82f65168c6854dbf114ece445b/xezavidisobenikoveloxokaf.pdfIn PDF document text
    • http://solee.cn/ckfinder/userfiles/files/13349719611.pdfIn PDF document text
    • http://serdceprirody.ru/userfiles/file/galer.pdfIn PDF document text
    • http://tvkinter.com/file_media/file_image/file/64753979819.pdfIn PDF document text
    • http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b0c9737054e---felisafudagaxa.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/qid68669k2nekqbo4533jif0e9/jumefemudobefaka.pdfIn PDF document text
    • http://riverbendhay.com/clients/4/4e/4e1cbd84181290ddb66fb035c9950ff6/File/kuvefobifuzimewonevarut.pdfIn PDF document text
    • http://szymonadamczyk.pl/uploads/fck/file/42896163781.pdfIn PDF document text
    • http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071297ce0ff6---jititib.pdfIn PDF document text
    • http://stolizstekla.ru/userfiles/file/napixinizigozixojigisutiz.pdfIn PDF document text
    • https://businessservicesuk.com/userfiles/file/nodipuwevixugapulosejiju.pdfIn PDF document text
    • http://0930actress.com/files/files/40814806235.pdfIn PDF document text
    • https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/8de8870346c7bcc19a6c747e40dd7c64/tasivutinezuworomu.pdfIn PDF document text
    • http://studiodabo.eu/userfiles/files/zadurosivo.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee2964a574---tugixagar.pdfIn PDF document text
    • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160988828883b6---vududopisoxavenam.pdfIn PDF document text
    • http://bebelino.ru/userfiles/file/ripevidipam.pdfIn PDF document text
    • https://sanvexe.vn/webroot/img/files/76201225367.pdfIn PDF document text
    • http://alsumiri.net/wp-content/plugins/super-forms/uploads/php/files/f104cc555efe1728f0a504b0dff53e3a/76475426191.pdfIn PDF document text
    • https://perfectsextherapy.com/public_html/userfiles/file/fulijotarizekafeku.pdfIn PDF document text
    • http://netmutum.com/userfiles/file/6496545768.pdfIn PDF document text
    • http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/pijerikozovedituxojidodu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+load+photo+paper+in+canon+mx922PDF 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 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_off0001049e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1049E 17404 bytes
SHA-256: 20a9a67aa6b097728189a5060e5a5ca1722daa5569efc6a7b5231243435cc820
font_01_sfnt_off0001318e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1318E 11080 bytes
SHA-256: 1a24fd484a44646c3261a660fb0cd3018157ebd6dbe02e0fbc30dd9e2d9a779c
font_02_sfnt_off00014b3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14B3D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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