Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c50257e37048f4…

MALICIOUS

PDF

124.3 KB Created: 2021-07-25 17:54:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f3a7a0654bcbad34cb194837a8416747 SHA-1: 7e7d86496f76d040f0e0402c4e4f7b488ae859da SHA-256: 46c50257e37048f4b2215bbf1eefaf61e92878cae623c0f48b699c1570c41b6f
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript, which is often used to redirect users to malicious websites or download further payloads. Several heuristics indicate the presence of link farms pointing to compromised WordPress sites, suggesting an attempt to host malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9850

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 http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/16072a357cd438---63659940564.pdf In PDF document text
    • http://haki.vn/uploads/files/97375831283.pdfIn PDF document text
    • https://lawtutors.co.uk/js/ckfinder/userfiles/files/71018265120.pdfIn PDF document text
    • https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/cda148ba91c7b66e4b87a87945c072ca/72684294567.pdfIn PDF document text
    • http://cricalliance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0fa73c5dd---nuwavinuxubumedobipulabez.pdfIn PDF document text
    • http://gdbchurch.com/clients/43262/File/44536472821.pdfIn PDF document text
    • https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/1778cb3ab3481b1bf88c34337d1d1caa/38421295289.pdfIn PDF document text
    • https://habibitours.net/ckfinder/userfiles/files/31001547151.pdfIn PDF document text
    • https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/160aa69da245d0---94106435188.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c0121a8a5f0---wopufakebanabejuvi.pdfIn PDF document text
    • https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072023b107d7---56606614695.pdfIn PDF document text
    • http://3qbuy.com/CKEdit/upload/files/18827131424.pdfIn PDF document text
    • http://1utilaje.ro/mm/file/mevajijowepamorodefux.pdfIn PDF document text
    • http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e317150b74c---2685520454.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a915429d8b4---71541051775.pdfIn PDF document text
    • https://mayurherbal.com/userfiles/file/bomupunubalif.pdfIn PDF document text
    • http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7dfa9ef59---nolupig.pdfIn PDF document text
    • https://bamfieldrental.com/userfiles/file/79127875025.pdfIn PDF document text
    • http://iltorg.ru/upload/file/newizuzivid.pdfIn PDF document text
    • https://aventura-agence.lu/userfiles/files/wifapipitikaguz.pdfIn PDF document text
    • http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1609d3dd44fd77---dunufipapixerebaxidevumo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=el+monstruo+de+los+colores+y+el+visitante+pdf+descargarPDF link annotation
    • https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/127509e7288e7330bee068dba7cbb530/74335765487.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_off00017ad5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17AD5 11224 bytes
SHA-256: c7ef57057c7e6d01379c697b67db555bd64d976b418437f047f48a082d661b04
font_01_sfnt_off000194ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x194EE 19672 bytes
SHA-256: 9b31026c864e8e4fc79dffbc48e7cf8d2360bde380ef4addc3fe39a3ef7b756c
font_02_sfnt_off0001c75b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C75B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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