Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f3f4eec3fc9c8c7…

MALICIOUS

PDF

77.6 KB Created: 2022-04-05 20:49:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-03
MD5: d5119a14b5ea7f74f58ee6551a35c675 SHA-1: 6de0a56b380f2b43b9a5d55887f4e57098ebe0e3 SHA-256: 5f3f4eec3fc9c8c70231f7d46e2282065559cee04a7d6ad34bcefd6f939de6fa
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://yubit.co.za/YmrXLWy8?keyword=fender%20hot%20rod%20deluxe%2040w%20tube%20amp PDF link annotation
    • https://fosozofafeg.weebly.com/uploads/1/3/1/8/131856121/dibifibibowibili.pdfIn PDF document text
    • https://livubefelamujir.weebly.com/uploads/1/3/4/8/134899239/zirudugo.pdfIn PDF document text
    • http://spasinnia.org/assets/ckeditor/kcfinder/upload/files/girojuf.pdfIn PDF document text
    • https://samsungklima.net/upload/ckfinder/files/putufamakatajega.pdfIn PDF document text
    • https://wheelmartthailand.com/image/upload/File/4030658797.pdfIn PDF document text
    • https://tebra.si/userfiles/file/32321383875.pdfIn PDF document text
    • https://xedexebil.weebly.com/uploads/1/3/4/2/134235570/4158421.pdfIn PDF document text
    • http://www.stsmcc.org/www/js/ckfinder/userfiles/files/58047191360.pdfIn PDF document text
    • https://kamionosnyelvlecke.hu/userfiles/file/20169001508.pdfIn PDF document text
    • https://molipose.weebly.com/uploads/1/3/4/6/134644393/kidebejevotum.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/16208ad2abdf6f---wopatarefuzabarebewojiman.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/xiwasab.pdfIn PDF document text
    • https://kigenubizama.weebly.com/uploads/1/4/1/2/141258734/povafamezenusis_noxizufoke.pdfIn PDF document text
    • https://lodotimafigu.weebly.com/uploads/1/3/5/9/135981467/98a1263a.pdfIn PDF document text
    • https://duzuvopewawufos.weebly.com/uploads/1/3/4/4/134491429/kigojanifa_vurujekoniw_vewowa_gonadofa.pdfIn PDF document text
    • http://rusiuojigalvoji.lt/wp-content/plugins/formcraft/file-upload/server/content/files/161fe3d953de9e---nasizuwodewamenarasig.pdfIn PDF document text
    • https://kadikodol.weebly.com/uploads/1/3/4/7/134747526/8192369.pdfIn PDF document text
    • https://koduxiwarutuj.weebly.com/uploads/1/3/2/7/132740502/4460819.pdfIn PDF document text
    • http://carzip.biz/files/uploads/files/niwiriberifejopapemisemip.pdfIn PDF document text
    • https://bawilawuvibowe.weebly.com/uploads/1/3/4/4/134401702/ribuled.pdfIn PDF document text
    • https://tipidaxu.weebly.com/uploads/1/3/0/7/130739537/a86bf2de9c2d188.pdfIn PDF document text
    • https://bufotikebejunut.weebly.com/uploads/1/3/1/3/131398235/82e47.pdfIn PDF document text
    • https://timigotevawil.weebly.com/uploads/1/3/5/3/135329967/jeduzatomuseremez.pdfIn PDF document text
    • https://bekekomigeb.weebly.com/uploads/1/3/7/5/137505653/9686100.pdfIn PDF document text
    • http://fukushigetakahiro.jp/pic/files/91863170341.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 extracted file (font_00_sfnt_off0000c8bb.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c8bb.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c8bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8BB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e0d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D2 11004 bytes
SHA-256: b93a3e6ccbef061e581df9f433688ac6be575a245c65dc438e3b0099c6278593
font_02_sfnt_off0000fa04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA04 17540 bytes
SHA-256: 2868f8c814d17c735752e410bfec4ed53d0e9a175029bce013cc3104f696c37f