Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f9aaa272e703d2…

MALICIOUS

PDF

351.2 KB Created: 2022-01-26 13:43:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: ee7668387f546f4a7ae89ce9c60853e6 SHA-1: c483905e9961e329c408cdd4427c7d1c4aec57c1 SHA-256: f2f9aaa272e703d23b7fdba349cb2f268583a1291958ab6d8a5219d7841c07e9
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded JavaScript and external URIs, indicating it is designed to redirect users to malicious websites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. The presence of a link farm pointing to compromised CMS upload storage further supports this, suggesting the PDF is part of a campaign to exploit user trust.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6543

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://colod.co.za/XSRYdR1H?utm_term=injury+report+chargers+vs+chiefs PDF link annotation
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/54ded1c3095926d6a5497093404a2675/38500198865.pdfIn PDF document text
    • https://www.reptrics.com/kcfinder/upload/files/56965572527.pdfIn PDF document text
    • http://willbramephotography.com/55750334730.pdfIn PDF document text
    • http://akinmedical.com/uploads/file/pedolitoloxuzuji.pdfIn PDF document text
    • https://agribusiness.pk/wp-content/plugins/formcraft/file-upload/server/content/files/161b240f450631---66928010639.pdfIn PDF document text
    • https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/pibuzaxuvozotifawerim.pdfIn PDF document text
    • https://zzwgjx.com/d/files/dojadejun.pdfIn PDF document text
    • https://senesi-sklad.cz/userfiles/file/zejidurepamopobakudiripa.pdfIn PDF document text
    • http://planao.com/ckfinder/userfiles/files/12627540630.pdfIn PDF document text
    • http://jonkmp.nl/img/cms/file/8806414510.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161a6406e50536---lereresoxora.pdfIn PDF document text
    • http://doo-san.com/userfiles/file/20211017143359.pdfIn PDF document text
    • http://zhfangyuan.com/uploadfiles/files/nuleli.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617b1dd27ccf5---wimerokafoziwusug.pdfIn PDF document text
    • http://chanhungcorp.com/images/uploads/files/pusoda.pdfIn PDF document text
    • https://www.bountyvacation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16178d406e6724---luzowosawetagisilunim.pdfIn PDF document text
    • http://perechen-izdaniy.ru/js/ckfinder/userfiles/files/dinorukavadaliwuxi.pdfIn PDF document text
    • http://bookblog.kr/data/file/files/kobosi.pdfIn PDF document text
    • https://solidpractise.com/files/userfiles/file/kivikiwaxikenigi.pdfIn PDF document text
    • https://vos-web.nl/userfiles/file/38593903968.pdfIn PDF document text
    • http://xn--oy2b19v1mb1yi.com/userfiles/file/5195506292.pdfIn PDF document text
    • https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/8458c443df40c4b6d7d0992bbb08222f/pazoloxolukozibiz.pdfIn PDF document text
    • http://primaria-ciocirlia.ro/media/file/71490272354.pdfIn PDF document text
    • https://miminku1.com/contents/files/41017878316.pdfIn PDF document text
    • http://ave-france.com/pics/files/xagabaxaxixewalizoneselem.pdfIn PDF document text
    • https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/a0e6eb3b279d481e4967e5bb079cbbdc/xigigatasijiwufofilab.pdfIn PDF document text
    • https://rsun.pro/admin/ckfinder/userfiles/files/pubutiselesokudiki.pdfIn PDF document text
    • https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/k5h9v6cpfsa8krrpmr6kvvj4j2/56242658945.pdfIn PDF document text
    • http://www.xpresswedding.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c685ff23802---bopexukigoluginopap.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_off00051276.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51276 16328 bytes
SHA-256: dfabab710665aadb0a5918eef0534fedd2efffd0ab71133559ec2a0cde50ae3d
font_01_sfnt_off00053ce7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53CE7 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0005538b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5538B 11076 bytes
SHA-256: be8fffefd575b9c61f3c91c93210374fa8e87f48597a397c3b913ad1a5eb46de

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