Malicious PDF — malware analysis report

Static analysis result for SHA-256 478c990dabe11359…

MALICIOUS

PDF

72.4 KB Created: 2021-10-05 07:59:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 4ad80863cc46e84e86289ae98f007088 SHA-1: ce4646d92f0b1bf19fc6d600904e437b250e7571 SHA-256: 478c990dabe1135990c21f08ef9702b1c27762e3ad6f427171ec32aa0abf0c0a
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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://allytemp.ru/uplcv?utm_term=why+are+alkyl+halides+immiscible+in+water PDF link annotation
    • http://kaies.net/upfiles/file/polusovowidatefax.pdfIn PDF document text
    • http://poslovniimenik.net/firme_data/files/binuxojupajijobavazena.pdfIn PDF document text
    • http://boldino-hotel.com/ckfinder/userfiles/files/zokafaxaboloturejumo.pdfIn PDF document text
    • http://vnos.vn/app/webroot/uploads/files/46922897081.pdfIn PDF document text
    • http://thermogroup.ru/uploads/files/burugoxel.pdfIn PDF document text
    • http://studiodabo.eu/userfiles/files/59188267641.pdfIn PDF document text
    • https://travels-ukraine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ea361e4b57---xisamexaxidujot.pdfIn PDF document text
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/358c24f45c7f0d438b4df4a9048d0b01/36539691927.pdfIn PDF document text
    • https://podiummagazinenews.com/ckfinder/userfiles/files/46031142756.pdfIn PDF document text
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/4e6cc363b71a32c92be117d3f3c98643/talakuzogukalezave.pdfIn PDF document text
    • https://albizy.com/ckfinder/userfiles/files/93850345315.pdfIn PDF document text
    • http://keletunderground.hu/images/uploaded_pics/file/39377371405.pdfIn PDF document text
    • http://ledspectrumthai.com/ckfinder/userfiles/files/78440005659.pdfIn PDF document text
    • https://bilbox.es/wp-content/plugins/super-forms/uploads/php/files/fb8959db169c537a66a7e40e06fa9492/22717164274.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16142dc2fdf6fb---tixulipukupegaxomunadat.pdfIn PDF document text
    • http://thaide.org/userfiles/file/61236958912.pdfIn PDF document text
    • http://chemicalengineers.ie/images/55020445443.pdfIn PDF document text
    • http://standardamulet.com/files/files/fetaz.pdfIn PDF document text
    • http://erpsamik.com/ckfinder/userfiles/files/20012547657.pdfIn PDF document text
    • https://www.seblocation.com/ckfinder/userfiles/files/vopumuwebunekebatilik.pdfIn PDF document text
    • https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/8fqt81kp2a06cfk1s46ak4e252/nunifexofuwav.pdfIn PDF document text
    • https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/77917cacd13f3456e4c9e0ada90b60fe/58733685365.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_off0000b810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB810 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000d027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD027 10940 bytes
SHA-256: a2f68385eb2eaa17e83aead367d382bc5532941968e16b89e50c0ac5f420cc07
font_02_sfnt_off0000e95a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE95A 16580 bytes
SHA-256: e9821f4de6cec0614d2c117524af919699462c6ee72a39ff2d31e6958746802c