Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5daca1f0bd66579…

MALICIOUS

PDF

83.3 KB Created: 2021-08-29 20:53:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: d8db4309233e56261dd395f81e5ebe13 SHA-1: 6c840778a4217862cfbe0c58c569dd6a0ee35193 SHA-256: c5daca1f0bd66579ee51ac98eb7b32c4c0885915f0c4b9a6181ef07d8b77ea1a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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 http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/161142992b2700---koxavalatije.pdf In PDF document text
    • http://lilit-realty.com/wp-content/plugins/super-forms/uploads/php/files/j4r5m8sfj9ssec0tl7hmdcq6f4/folapuvu.pdfIn PDF document text
    • http://engroupe.ca/aym_image/files/zepizegajokejufopix.pdfIn PDF document text
    • http://timandlor.com/userfiles/file/kopegitigikasupogesawarel.pdfIn PDF document text
    • https://www.leasing.net.in/ckfinder/userfiles/files/wewasa.pdfIn PDF document text
    • http://hncastlecable.com/d/files/10662009135.pdfIn PDF document text
    • http://uleshuzatshop.hu/files/file/27044349165.pdfIn PDF document text
    • https://stmpallet.com/ckfinder/userfiles/files/1509788978.pdfIn PDF document text
    • http://alituncer.com/userfiles/file/wutigowulaf.pdfIn PDF document text
    • https://aldurra.ly/images-editeur/img/file/49380725847.pdfIn PDF document text
    • http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/guvaroneb.pdfIn PDF document text
    • http://katour.ru/admin/ckfinder/userfiles/files/47524026712.pdfIn PDF document text
    • https://alsultantrading.ae/userfiles/files/90257331149.pdfIn PDF document text
    • http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/pevesezunixenilakojum.pdfIn PDF document text
    • http://makesomenoise.hu/upload/file/51666676700.pdfIn PDF document text
    • http://vertracapital.com/uploads/files/96606716489.pdfIn PDF document text
    • http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d58261f1ca9---gatoketurumusekebeg.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/e23d69cef9ae13f166d14d213fa162c7/potanefiwajowumig.pdfIn PDF document text
    • https://cortemadera.com/wysiwygfiles/file/lotavizubanavubujuw.pdfIn PDF document text
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16096ed3459cdc---35805143609.pdfIn PDF document text
    • https://vishalahospitality.com/ckfinder/userfiles/files/kisad.pdfIn PDF document text
    • http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16089da1b5969d---jepububed.pdfIn PDF document text
    • http://prvugkh.ru/uploads/files/napuvadotikupuxigasubaxa.pdfIn PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/16v16f6settr45laouck9dc7sd/fimofazo.pdfIn PDF document text
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c81edaee19---27834746355.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=books+on+price+action+trading+pdfPDF link annotation
    • 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_off0000e0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f8d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D4 10892 bytes
SHA-256: 0cc378317c01bfc42031237b2a85c787d8b04aa7bd328752f10a33e7c789909a
font_02_sfnt_off00011200.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11200 17448 bytes
SHA-256: 4a428744e4925fd8cf218f5a095580d4bfd8bcd55dd2643850c5ca1e738a8aa3