Malicious PDF — malware analysis report

Static analysis result for SHA-256 c124962812233a0d…

MALICIOUS

PDF

97.8 KB Created: 2021-06-25 19:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e78088c9928786acf4c8f9e7839bd44e SHA-1: 9680110a8e5a095a95ef365a457aafdec94a05e9 SHA-256: c124962812233a0d57ece8424de4c7805cf3276c199a6cc0c55d76038b6f20dd
156 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to numerous compromised WordPress sites, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent. The embedded URLs are designed to lure users to potentially harmful content, likely as part of a broader phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9930

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://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4152386344---pumupulajepadojebuxunesuk.pdf In PDF document text
    • http://orbitsecurity.qa/pro_mvp_tech/uploads/file/malijepefijotatijudezekat.pdfIn PDF document text
    • https://stratasphere.online/userfiles/file/43220099845.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/jfv3cvl2tj030bddb4lspjbdr2/jepapojitejorepawotaf.pdfIn PDF document text
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c373777385---vomobe.pdfIn PDF document text
    • https://www.eziblank.com/wp-content/plugins/super-forms/uploads/php/files/vqhr3kd3j7qqmlhbrh30n66as0/93239716256.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/2519769fcdc3d9aa0ddca8b817608544/nadujerudetukobeguri.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1d8848b62---jozegakavibebotekevaf.pdfIn PDF document text
    • http://mispuntossaga.com/campannas/file/wutagowojitudizamiregas.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160cbf6a4c97a2---9096456780.pdfIn PDF document text
    • http://prattsofdouds.com/clients/d/d8/d85aab9f4bcbae69c8358f7a9990a0b1/File/47583401560.pdfIn PDF document text
    • http://vasvaripalmuzeum.hu/upload/file/13253169977.pdfIn PDF document text
    • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b3b066a65d4---93132501406.pdfIn PDF document text
    • https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/352b7c218488ff8ba31eeb1b7b056df5/65277876920.pdfIn PDF document text
    • https://wccia-vastu.com/wp-content/plugins/super-forms/uploads/php/files/4d0dab109ba63b9132653af2048801d0/gogef.pdfIn PDF document text
    • https://gofropack.com/wp-content/plugins/super-forms/uploads/php/files/8c0fd1cbc312aa139f3b46f331080b9c/raguvurunakuzutetodujum.pdfIn PDF document text
    • http://mmckno2010.zkosuchdol.info/files/81706064274.pdfIn PDF document text
    • http://casier-a-bouteilles.com/file/26211638608.pdfIn PDF document text
    • http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160cce6fed7598---kaminarolisepilikofod.pdfIn PDF document text
    • https://micast.de/wp-content/plugins/super-forms/uploads/php/files/gaktvau17ja1kv01eo2m990kj5/kofaxevel.pdfIn PDF document text
    • https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/970667045d94e0f84874d777dd3a292b/49770161599.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160740100dac3c---soruliresivotigutojexurul.pdfIn PDF document text
    • https://dungcuruamui.com/wp-content/plugins/super-forms/uploads/php/files/dc8jltjfaf2t7d1nisba1v1pl2/86401809355.pdfIn PDF document text
    • https://www.hinogas.com/wp-content/plugins/super-forms/uploads/php/files/olk694aht5j79iigqdm0b51j9v/dugumitazizoxakamelud.pdfIn PDF document text
    • https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0dfbe53c5---nimafigizelitasi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=basics+of+medical+physiology+by+venkatesh+4th+edition+pdf+downloadPDF 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_off0001160e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1160E 17516 bytes
SHA-256: 8ed75d607fb61ff19cf2b492f5fa91f780ab144a6f763f296d541a7b43f95698
font_01_sfnt_off000143ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143EF 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00015c06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15C06 11596 bytes
SHA-256: 88bbf133d72b86372814a7108bcb4b79cd83e469310a5acc2de3aad95502db68

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