Malicious PDF — malware analysis report

Static analysis result for SHA-256 94105784a07fd0a2…

MALICIOUS

PDF

85.3 KB Created: 2021-10-11 01:59:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 5a2f49e93f4295b727e64153a20c899a SHA-1: bca2ee6c139254c91ea039dfd89ed55932712433 SHA-256: 94105784a07fd0a2a67dd4366ffd172c141512ccb2a9c6eac32673fe4bb22609
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and an ML classifier, with multiple heuristics indicating it is a link farm pointing to various PDF files hosted on potentially compromised or disposable domains. The presence of external URIs and links to compromised CMS uploads suggests an attempt to redirect users to malicious content, likely for phishing or malware distribution. No scripts were extracted, but the overall structure and URL patterns are indicative of a phishing or downloader campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://pixomot.ru/uplcv?utm_term=ex+directory+listing PDF link annotation
    • http://hijoin.hu/editor_up/fixetekabu.pdfIn PDF document text
    • http://oldmotorsclub.com/files/file/49374062908.pdfIn PDF document text
    • http://aawyx.com/sites/default/imageuser/file/latewoxotulikugitazave.pdfIn PDF document text
    • http://tries.cz/media/images/upload/file/66650849133.pdfIn PDF document text
    • http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615f1befe13c1---lejomapigope.pdfIn PDF document text
    • https://venefoil.com/ckfinder/userfiles/files/46626405170.pdfIn PDF document text
    • http://www.gonouvellezelande.com/files/wirexe.pdfIn PDF document text
    • https://franchisefarm.franchiseharbor.com/files/files/5290440805.pdfIn PDF document text
    • https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/0090e7dae5dfe03ef38ec6b97cb422b0/xijiradaneburerado.pdfIn PDF document text
    • https://dalba.net/other_files/File/55343038499.pdfIn PDF document text
    • https://viadagio.be/userfiles/file/fagipefawosebudogepi.pdfIn PDF document text
    • https://limsurempat.com/contents/files/10628169499.pdfIn PDF document text
    • http://mamnonhieutrung.edu.vn/ckfinder/userfiles/files/desuwiginerevaze.pdfIn PDF document text
    • https://festacontinua.it/public/file/58456385354.pdfIn PDF document text
    • http://icloudcleaners.com/uploads/account/autoresponderfiles/roziwikixowekarun.pdfIn PDF document text
    • http://davidhammerstein.org/userfiles/file/bugonezepi.pdfIn PDF document text
    • https://click2repair.chocoza.com/userfiles/file/80781866322.pdfIn PDF document text
    • http://agisinfo.ru/uploads/content/files/18317954230.pdfIn PDF document text
    • http://donleroy.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/robaxanowilenel.pdfIn PDF document text
    • http://dobryremont.pl/ebobas/portal/app/webroot/img/tmp/file/16321890207722.pdfIn PDF document text
    • http://playoz.com/ckfinder/userfiles/files/41486859017.pdfIn PDF document text
    • http://157.230.241.115/image/upload/File/68526629195.pdfPDF link annotation
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140bbd0623fb---meketixilifuxovipov.pdfIn PDF document text
    • http://dirpub.org/editor/ckfinder/userfiles/files/tugozapepofewazusogolaro.pdfIn PDF document text
    • https://mar3ol.com/Files/files/geverudovoguf.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_off0000e6a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6A7 10584 bytes
SHA-256: 5eca45a41fd45ae364ea8fe0bff2dab4a1c36a07fee8b5e12504283cabd24b11
font_01_sfnt_off0000feba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000116cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116CC 18568 bytes
SHA-256: d0908cad5afb359a92527a060f7a9d8bd71b344db46d94d7135946960888681d

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