Malicious PDF — malware analysis report

Static analysis result for SHA-256 425d3065e1ac8cd2…

MALICIOUS

PDF

82.9 KB Created: 2021-09-01 04:09:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-15
MD5: dd87b7c8f635af47d9cf48fd39dd9f7f SHA-1: d7b6c7eeec5054fa844a884a5d1050605a2cc526 SHA-256: 425d3065e1ac8cd2e4b80a2f614843c42c343a2d18bc23e539bf8fd55c6a5813
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://wastran.ru/uplcv?utm_term=types+of+demand+in+managerial+economics PDF link annotation
    • http://burchiellati.com/file_fck/file/kabemese.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/8655ef0c25851599a92b49531a8f75f5/39822489552.pdfIn PDF document text
    • http://tmtechvn.com/webroot/img/files/molalefobatezowekilozi.pdfIn PDF document text
    • https://dollarplus98.com/images/upload/files/28108284614.pdfIn PDF document text
    • http://sevinctekstil.com/resimler/files/semitobavavevezek.pdfIn PDF document text
    • https://bleikss.com/userfiles/file/viregafogod.pdfIn PDF document text
    • http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607d72fa90355---tidonixazupuvow.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e693247526e---90233524546.pdfIn PDF document text
    • https://inchiriereelicopterromania.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ba3657d10f3---wodamexumowiral.pdfIn PDF document text
    • https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/b1b5318131d0b0ea77060ff85b7c3cbd/fololegebasadazuxav.pdfIn PDF document text
    • https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160853f0d6a607---82618289907.pdfIn PDF document text
    • http://southwest66reunion.com/clients/f/f6/f6f8b7bd17d60304c359e527a2c43449/File/49970205897.pdfIn PDF document text
    • http://m2mus.ca/clients/b/b1/b1ca46fdb12d68e762e4a8b3318caec0/File/1713639300.pdfIn PDF document text
    • http://didongsinhvien.com/upload/files/14268061959.pdfIn PDF document text
    • http://www.musicmaestrodiscos.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16078e7f2d02eb---61914813557.pdfIn PDF document text
    • http://dom-2000.ru/ckfinder/userfiles/files/39459551120.pdfIn PDF document text
    • http://abwmarlboropike.com/uploads/files/77577824880.pdfIn PDF document text
    • https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/c514c5bb178395796ea83b39e860bd3d/67972215308.pdfIn PDF document text
    • https://evermoral.hk/upload/file/1624293211.pdfIn PDF document text
    • https://iescolumbus.org/wp-content/plugins/super-forms/uploads/php/files/d1b31b3790ceffe378c545e66e3a2aae/ferulibesamubumikowa.pdfIn PDF document text
    • http://lacasedescaraibes.fr/file/lilitavafafukafiles.pdfIn PDF document text
    • http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607825196f168---30125205755.pdfIn PDF document text
    • http://phantasos.org/userfiles/file/zozalaluzurozerurovalig.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_off0000defa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEFA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f70c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70C 17340 bytes
SHA-256: 5c3eec180cbf6293a3aa007a9777706b8a7bc254e56dcbddf48eb25ae72701d1
font_02_sfnt_off000123a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123A2 10944 bytes
SHA-256: efb4a8061a2283f6715b89b61232ab98dd1ea5be2663c6d0ef3c2a2f4135da37