Malicious PDF — malware analysis report

Static analysis result for SHA-256 a142893d04914ebe…

MALICIOUS

PDF

86.6 KB Created: 2021-06-30 21:34:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: d0271ae4fac7853961ed6e37a9cb19e1 SHA-1: 42d6b74951824607d8bbc3a39d2f480d4dbc422a SHA-256: a142893d04914ebe5ff9acd593376e63c330a01e73a6e0fcf94204388ee307b5
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, many of which point to compromised websites or disposable domains, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the nature of the embedded URLs and the heuristic firings point towards a malicious link farm designed to lure users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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://inwebjor.ru/uplcv?utm_term=switched+for+christmas+2017 PDF link annotation
    • http://sevenseahotel.com/uploads/images/files/tenavudawewusus.pdfIn PDF document text
    • http://brlairport.com/images/file/nogekesefetikodavob.pdfIn PDF document text
    • https://robotics-institute.com/wp-content/plugins/super-forms/uploads/php/files/sdu09vnrcmsqqs4f1jtafv75s9/wixesemobup.pdfIn PDF document text
    • http://wingmanresearch.com/userfiles/files/21484911467.pdfIn PDF document text
    • http://ash-graphy.com/userfiles/file/vubitovivivuderojipifadat.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/3ec5d521fbdf51ad6855534bb9347a49/bezowafidaje.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/0flvfk3pto0al84gntf8fo7oot/kapavudos.pdfIn PDF document text
    • http://renknh.com/ckupload/files/73308782475.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606f37c347055---vozomoxesuf.pdfIn PDF document text
    • https://marblo.ph/app/webroot/img/files/99324366800.pdfIn PDF document text
    • http://beckydavidsonhomes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb548d68727---9548625357.pdfIn PDF document text
    • http://homeopathyhongkong.org/files/ziwuw.pdfIn PDF document text
    • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/f0f89322c2142388832f4dcd91ee4785/15808333704.pdfIn PDF document text
    • http://praxis-greve-polley.de/web/editor/files/6534539491.pdfIn PDF document text
    • http://chinalabware.es/d/files/nogirajuvevajowezotu.pdfIn PDF document text
    • http://mistral-paints.cz/userfiles/files/95663614363.pdfIn PDF document text
    • https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/06ff993cbdb22fe74a1712dcd43cbbeb/kulikemipagiti.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/34741147123.pdfIn PDF document text
    • http://lightningriskassessment.com/ci/userfiles/files/melido.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee8bf52ce5---tobela.pdfIn PDF document text
    • https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607be5f0e6557---vuronizelujalag.pdfIn PDF document text
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f16dd40ca7---72468491776.pdfIn PDF document text
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/c8c387d51701d782d9a8ffed2f44ee7d/vuvujuvosudelosurexod.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_off0000ee4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE4C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10663 11096 bytes
SHA-256: fd0b6bc65b0260c4f79cd87b2addd2d2f887ed57591ddc527d808bcdcf0288d9
font_02_sfnt_off00012079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12079 17504 bytes
SHA-256: 8f05cc32b99c34661bd7bf673d4305ad96af31c74df927a1598effb33b27e7ae

Open this report in the interactive analyzer, or submit your own file for analysis.