Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d229ee28392ec9…

MALICIOUS

PDF

75.8 KB Created: 2022-04-06 23:47:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: feacb3d20fea5506b1ef46e8a39b4bb7 SHA-1: 8f52c4fd09563b4410da660eb69467a9a6698e2f SHA-256: c5d229ee28392ec9c78ad1fd8e9144fb308ad6f7f76baf46931f8990f369fdb8
194 Risk Score

Malware Insights

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

This PDF contains embedded JavaScript and a large number of external links, indicating it is designed to redirect users to potentially malicious websites. The heuristic firings, including PDF_SEO_LINK_FARM and PDF_SEO_DISPOSABLE_LINK_FARM, strongly suggest a link farm or phishing lure. The ML classifier and ClamAV detection further confirm its malicious nature, likely serving as a dropper or phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://yoyep.co.za/YmrXLWy8?keyword=building%20wealth%20one%20house%20at%20a%20time%20updated%20and%20expanded%20second%20edition%20pdf PDF link annotation
    • https://retedavaliloxi.weebly.com/uploads/1/3/5/3/135393755/pawikikug-dojutikixuzigi.pdfIn PDF document text
    • https://zovazidat.weebly.com/uploads/1/4/1/2/141281192/f6e33e9c9165d06.pdfIn PDF document text
    • https://pacie.vn/web/uploads/files/fejomikixo.pdfIn PDF document text
    • http://teleprasowanie.pl/kcfinder/upload/files/bubesogopimumodogosirelag.pdfIn PDF document text
    • https://kokejegifuro.weebly.com/uploads/1/3/4/4/134477846/4413842.pdfIn PDF document text
    • http://veedik.com/assets/admin/kcfinder/upload/files/zevozimenowamufupizanelan.pdfIn PDF document text
    • https://gixakipero.weebly.com/uploads/1/3/1/4/131412713/misakafuvigaxebuxa.pdfIn PDF document text
    • https://ligezuwokatajef.weebly.com/uploads/1/3/1/6/131606313/9683722.pdfIn PDF document text
    • https://sevimuxeso.weebly.com/uploads/1/3/0/7/130739978/wolikuzidu.pdfIn PDF document text
    • https://www.iconcollege.ac.uk/AdminPanel/public/ckeditor/kcfinder/upload/files/luzanomusuwajew.pdfIn PDF document text
    • https://lowisaxov.weebly.com/uploads/1/3/4/3/134361609/023eb42d106.pdfIn PDF document text
    • https://wapapoda.weebly.com/uploads/1/3/4/5/134581042/6143091.pdfIn PDF document text
    • http://t-700.net/upload_img/files/topibaxabeporivewefer.pdfIn PDF document text
    • https://liad-alger.fr/admin/style/js/edit/kcfinder/..%5Cimages%5Ccontenue/files/28744184441.pdfIn PDF document text
    • http://elcastillotucentrotextil.com/imagenes/contenido/files/texiranep.pdfIn PDF document text
    • http://mysmartedu.com/uploadimages/files/13350932537.pdfIn PDF document text
    • http://sevenhillsgroup.net/ckfinder/userfiles/files/guwokufufu.pdfIn PDF document text
    • https://bizudabug.weebly.com/uploads/1/3/4/7/134722823/5055c6ad1.pdfIn PDF document text
    • https://pagudibaxite.weebly.com/uploads/1/3/1/4/131410234/juwuloxamixelob_setotigobivaze.pdfIn PDF document text
    • https://wanesoxe.weebly.com/uploads/1/3/4/3/134369563/f2d9660.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_off0000c083.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC083 16848 bytes
SHA-256: 4673d09c41337e61f923adc2f3d32acd492afed613d6e9d431646aa73544d398
font_01_sfnt_off0000ecc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC4 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000104db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104DB 11308 bytes
SHA-256: c296e8ce1a3417a13d2e06d1b213641470c384ada915c197d98daabb60694517