Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e3344a232e40309…

MALICIOUS

PDF

103.0 KB Created: 2021-06-30 10:38:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: c7178e86cf0265d5054132c4b7e8a09e SHA-1: 04d3c45bd78855e6d32ef3c34596254a1859ba92 SHA-256: 4e3344a232e403099faca3207f90b6cc32551aa258971f858adedaeee403970f
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9917

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 https://crewmak.ru/uplcv?utm_term=jesus+christ+his+only+son+our+lord PDF link annotation
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a226961faa0---74181259458.pdfIn PDF document text
    • https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/1kj82u17p8nnc29qqt70lb7lmn/robid.pdfIn PDF document text
    • https://uleshuzataruhaz.hu/files/file/12624000124.pdfIn PDF document text
    • http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c2f0790b89---xibomibi.pdfIn PDF document text
    • http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160839937b9917---46236339370.pdfIn PDF document text
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160b84d1e8df6d---dogabowa.pdfIn PDF document text
    • http://ubestsports.com/imager/files/20210605214320.pdfIn PDF document text
    • http://beulahcooleycollection.com/clients/870349/File/penavizafedefob.pdfIn PDF document text
    • http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a9f00a193ad---dujuvosa.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/e131e0db7ef4d9989746dc123c66d6cc/59001251802.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/1609533a32e248---84840981131.pdfIn PDF document text
    • https://posaonakosovu.com/ckfinder/userfiles/files/40455391656.pdfIn PDF document text
    • https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d879ddd86da---62145277382.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/8k2e01fqpfb2ov6rlrg6nof32o/mozusorijoxumuwawetuveba.pdfIn PDF document text
    • https://altonika.pro/files/fck/file/79415639442.pdfIn PDF document text
    • http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16076c1d4cce81---25748818971.pdfIn PDF document text
    • https://airshow-bg.com/file/defotowepijinekalir.pdfIn PDF document text
    • http://asckhn.com/acskhn/userfiles/file/nipega.pdfIn PDF document text
    • http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f39b5bb828---gatoxixuw.pdfIn PDF document text
    • https://parokisantolukas.org/Uploads/userfiles/files/96564061008.pdfIn PDF document text
    • https://akapacha.com/userfiles/file/39498975804.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ae61c39a93---goxudatozaf.pdfIn PDF document text
    • http://hangtatmj.com/userfiles/74772273788.pdfIn PDF document text
    • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b417815272---gokurorebakesa.pdfIn PDF document text
    • http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202104302323405030.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_off00012e45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E45 18136 bytes
SHA-256: d4426523f78c7e089d3a572923ba4f507e81d6862f0ee80d7afbc7677d240daa
font_01_sfnt_off00015d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D2F 10512 bytes
SHA-256: 73414217332d9d5f67f56e7cc773db839ebe6864575679a67f2473194b3b44a2
font_02_sfnt_off00017519.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17519 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1