Malicious PDF — malware analysis report

Static analysis result for SHA-256 941d0514cd201c07…

MALICIOUS

PDF

69.2 KB Created: 2021-10-01 15:05:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 60da00382d8f2cf9b326f5f8de94db17 SHA-1: 7a5c8298e71af394a3e69160a63760e1d0d29756 SHA-256: 941d0514cd201c07f518d0b3eefeb271e4a4ec8ce25261fdbcb04380148b06d3
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains embedded JavaScript and numerous external URIs, many of which point to disposable hosting or compromised CMS upload storage, suggesting a link farm designed to redirect users to malicious content. The embedded JavaScript likely facilitates the redirection or further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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
  • 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.
  • 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://oniceh.ru/uplcv?utm_term=how+to+look+into+private+insta+account PDF link annotation
    • http://dieta-plus.pl/userfiles/file/lolabofuxatevowenerepunem.pdfIn PDF document text
    • http://headlinesdinerla.com/uploads/files/zokafemuvitavoz.pdfIn PDF document text
    • http://gtlmarinefuel.com/userfiles/file/54478400291.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/ghpm8lhcb2lh9fvpi75u9fgsu6/56845103638.pdfIn PDF document text
    • http://safetruck.gr/images/file/31401203273.pdfIn PDF document text
    • https://hklh.vip/data/attachment/file/pipepadatafitubagilazu.pdfIn PDF document text
    • https://facades-et-traditions.com/actualites/file/jipobej.pdfIn PDF document text
    • http://behtarinekhodetbash.com/files/files/sajowinapexikuderamu.pdfIn PDF document text
    • https://fundoohairstyles.com/hairstyler/images/file/73814205653.pdfIn PDF document text
    • https://bruceautoservice.com/files/file/7582089979.pdfIn PDF document text
    • http://keystoparadise.com/userfiles/files/24241417697.pdfIn PDF document text
    • http://gaineyranchaz.com/userimages/nipej.pdfIn PDF document text
    • http://docando.es/js/ckfinder/userfiles/files/rutevuxuzimulanejisesugus.pdfIn PDF document text
    • http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16141376937d22---vorejelokonazarajunof.pdfIn PDF document text
    • http://gruppocreta.com/userfiles/files/dizel.pdfIn PDF document text
    • http://evohome.pl/userfiles/file/30109718929.pdfIn PDF document text
    • http://chernogolovka.inhome360.ru/admin/ckfinder/userfiles/files/52741455810.pdfIn PDF document text
    • http://normel.org/files/upload/file/78305382383.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613921ec9e255---misafomurik.pdfIn PDF document text
    • http://3q1p.com/upload/file/210917122031638377eb16rgcz3o3o.pdfIn PDF document text
    • https://adetexfoamgroup.centralcms.cloud/galeria/files/73214315054.pdfIn PDF document text
    • https://saint-florentin.charcutier-traiteur.fr/ckfinder/userfiles/files/pufobulug.pdfIn PDF document text
    • http://xdata.pl/app/webroot/img/ckf/files/sonilobofazus.pdfIn PDF document text
    • http://meta-min.com/files/gufelofigamowodegix.pdfIn PDF document text
    • http://gsmontaggi.it/userfiles/files/forurajaval.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_off0000b03e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB03E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC855 10704 bytes
SHA-256: e59711a25cba4cc8c38fbfa85eae5d2039e55256124eef313d4779bd30a51fb7
font_02_sfnt_off0000e10a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE10A 14520 bytes
SHA-256: ff766f0c5aef4beb2f182068277086682a7512bb7e2006bfeb0d1794d96b7ad1

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