Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6757048af48130…

MALICIOUS

PDF

79.5 KB Created: 2021-11-07 05:38:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 0829345177f24cc8c30852b7ae73d152 SHA-1: d9283b046e1af49997474d20153342930a99c2de SHA-256: 2b6757048af48130d66a823106a94f88b3330a8d19d3dfc6cd2bbb6144c6f2eb
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

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://irlanc.ru/uplcv?utm_term=has+written+or+wrote PDF link annotation
    • http://ortopediaszombathely.hu/editor_up/mibiweduwubanazez.pdfIn PDF document text
    • http://hkalc.com/userfiles/72453223993.pdfIn PDF document text
    • https://cmoretv.com/userfiles/85756404883.pdfIn PDF document text
    • http://eachfun.com/ckfinder/userfiles/site_eachfun_com/files/3831468925.pdfIn PDF document text
    • https://khoahoc.timviec365.com/picturesfiles/womowadaxub.pdfIn PDF document text
    • https://grupahatak.pl/admin/_fck_files/file/gaxavemawefe.pdfIn PDF document text
    • https://sonerofset.com/userfiles/file/35847072338.pdfIn PDF document text
    • http://ehomeforeclosure.org/images/file/vaxajuf.pdfIn PDF document text
    • https://santchavarabed.in/ckfinder/userfiles/files/jefamujiponexaxuvinet.pdfIn PDF document text
    • http://hongphuc.vn/userfiles/file/65078867135.pdfIn PDF document text
    • https://drgcode.managenet.ro/images/file/82200943251.pdfIn PDF document text
    • http://progettarecasa.com/userfiles/files/foretudinafunoxego.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f6ba35745b---75487425608.pdfIn PDF document text
    • http://letsfinal.com/userfiles/file/jivexovakaxisomesofukipul.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/e079mkep4bbqjmd3p2ef61v4i4/65382213831.pdfIn PDF document text
    • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/ee3a5c0bd90612615a01d3961c3b5291/88438376026.pdfIn PDF document text
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/16145b6bda5ae2---32778196117.pdfIn PDF document text
    • http://biosurfest.com/userfiles/files/witalelimanetubawetodenuv.pdfIn PDF document text
    • http://obkladlazby.cz/userfiles/file/33677881121.pdfIn PDF document text
    • https://dubaimotorcycletours.com/uploaded_images/files/rosujajugir.pdfIn PDF document text
    • https://sdhouse.info/ckfinder/userfiles/files/49135433222.pdfIn PDF document text
    • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/tadumelafidapodexir.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1616536f244fac---69111941163.pdfIn PDF document text
    • http://m2m2design.com/userfiles/36857476080.pdfIn PDF document text
    • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/bqrt10hham84uuhve7j9r0e59c/96396270240.pdfIn PDF document text
    • https://muzeumkonstancina.pl/attachments/file/jotetawupuveba.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_off0000cebe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEBE 19828 bytes
SHA-256: 47ed0f696afa60e90530a0a8331106e7d576b486974ab3be23929bdeff424c59
font_01_sfnt_off00010268.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10268 16540 bytes
SHA-256: 45015263e28dbf00792e0fa83ae0fb9123af5110209f191c00797c49350166ef
font_02_sfnt_off0001198e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1198E 10132 bytes
SHA-256: 6b96fb1748ee0540c3bee76abf6f9332535cc41d3d18b797128e7ce4159753c6