Malicious PDF — malware analysis report

Static analysis result for SHA-256 941fd4ae43a8f61a…

MALICIOUS

PDF

76.1 KB Created: 2022-04-11 21:47:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: 9fafa9fc1aaf3beac15195f3328e0e31 SHA-1: 435742a47306dfadcd0fa1b2808559dbd67d1f4f SHA-256: 941fd4ae43a8f61af4e36b54538b4e1c9cefb2abbb73f044754f15fd485242b4
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and multiple external URLs, including one that appears to be a lure for 'sniper training courses'. Heuristics indicate the PDF is part of a link farm hosted on disposable or compromised domains, suggesting a phishing or scam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to malicious sites or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://loheb.co.za/YmrXLWy8?keyword=sniper%20training%20course%20near%20me PDF link annotation
    • https://segurodegranizo.ar/noticias/fckeditor/file/39405994776.pdfIn PDF document text
    • http://archgeo-leszno.pl/uploads/userfiles/files/wusujuxivitun.pdfIn PDF document text
    • http://savytrading.com/userfiles/file/93272271150.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/c3e652d3a205a64128c9316bae6ec536/26909357447.pdfIn PDF document text
    • https://bovojejepar.weebly.com/uploads/1/3/4/6/134670017/dizoridunuzodom.pdfIn PDF document text
    • https://www.kidilangues.fr/js/kcfinder/upload/files/bexajus.pdfIn PDF document text
    • https://novedoxax.weebly.com/uploads/1/3/4/5/134512377/3933041.pdfIn PDF document text
    • https://guxozagubixox.weebly.com/uploads/1/3/1/4/131437827/85d82fcea283610.pdfIn PDF document text
    • http://nbaindia.nic.in/includes/ckeditor/plugins/kcfinder/upload/files/42300211030.pdfIn PDF document text
    • http://kondicionery-elektrostal.ru/upload_picture/file/60917709375.pdfIn PDF document text
    • http://popmetre.com/news/files/9529770847.pdfIn PDF document text
    • https://brothers-music.com/ckfinder/userfiles/files/32220992308.pdfIn PDF document text
    • http://cecev.com/stockages/files/20627405977.pdfIn PDF document text
    • https://lomekizawulom.weebly.com/uploads/1/3/4/7/134704223/buwufexanenelubemi.pdfIn PDF document text
    • https://salotoniv.weebly.com/uploads/1/3/5/3/135305201/6265090.pdfIn PDF document text
    • https://adtw1.com/ckfinder/userfiles/files/89843758822.pdfIn PDF document text
    • http://topbondtape.com/uploadss/file/doxazagobiribanekin.pdfIn PDF document text
    • https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/6d3863b389f8a9e494e359c1ed1753fc/26009428902.pdfIn PDF document text
    • https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/039872163510599103134e37a35a5650/68202206974.pdfIn PDF document text
    • http://www.americandartsmadrid.com/kcfinder/upload/files/38728294801.pdfIn PDF document text
    • https://investin-khj.ir/ckfinder/userfiles/files/badepusegufisij.pdfIn PDF document text
    • http://saludocupacionalpso.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16243817f0794a---duzipesivetado.pdfIn PDF document text
    • http://reklamnizbozi.cz/data/upload/files/77843523439.pdfIn PDF document text
    • http://asr-net.ru/uploads/files/83479026455.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_off0000c433.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC433 17252 bytes
SHA-256: ae83c18b8b54284dd543a8fcb30fc3799a5bc18b6a47395a78f7cd629298cb1e
font_01_sfnt_off0000f137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF137 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001094e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1094E 10848 bytes
SHA-256: 5457b74c048831a20928e7ac93d47e3d1fb25407b68cac42d2294ac2ee18a083