Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0778a683f76f96f…

MALICIOUS

PDF

155.4 KB Created: 2022-03-12 07:13:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: 55f7a47af73ae2d280b17c4e0929363c SHA-1: 4c6bd32ac3a641c2a516cb23d0b83f6f2b89f759 SHA-256: d0778a683f76f96f8fa70b71b236e42f808d96029d0a4bf19c923b2823fb1257
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9357

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://sportsfeats.com/app/webroot/js/kcfinder/upload/files/zerotadapa.pdf In PDF document text
    • http://xlpe.net/Images_upload/files/26087922797.pdfIn PDF document text
    • http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211d6bcefcd2---dokamejipisusixowonenigej.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/42d738db16b7f981eef76ae50c82ad10/92861747295.pdfIn PDF document text
    • http://grjzsgc.com/luodan/images/userfiles/file/9789155122.pdfIn PDF document text
    • http://hudebninastrojedrastik.cz/js/kcfinder/upload/files/54413846637.pdfIn PDF document text
    • https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/gdv56e8c4uhc559pgfsd842e42/niluvugubuk.pdfIn PDF document text
    • https://p-yanagase.gorakuou.net/blog/upimg/3198595442.pdfIn PDF document text
    • http://hitplus.eu/userfiles/file/14639120208.pdfIn PDF document text
    • https://aiwatopup.com/ckfinder/userfiles/files/37636714742.pdfIn PDF document text
    • http://yuqiaohome.com/uploads/files/202203011511164856.pdfIn PDF document text
    • http://hotelbellevuepalermo.com/userfiles/files/97956288187.pdfIn PDF document text
    • http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/18022483246205122027ecf.pdfIn PDF document text
    • http://kozhencherrymtc.org/userfiles/file/lebivarowogipemevuvizebaw.pdfIn PDF document text
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/alrscqejo5emg9pnau527sin78/visirufalaruxejemomuzamu.pdfIn PDF document text
    • http://simonkuehner.de/gfx/userfiles/files/15756320474.pdfIn PDF document text
    • http://x04ydivan.ru/userfiles/file/79751480141.pdfIn PDF document text
    • https://www.iccct21.scrs.in/kcfinder/upload/files/82260192413.pdfIn PDF document text
    • https://abcelectricalonlineshop.brilliantwebtech.com/userfiles/files/mitojazivufuxokaf.pdfIn PDF document text
    • http://xtra360.net/campannas/file/49294066314.pdfIn PDF document text
    • http://spostojow.pl/userfiles/file/tuguginupetejito.pdfIn PDF document text
    • http://sro52.ru/uploads/files/fewonepimaxidapa.pdfIn PDF document text
    • http://aeon-dev.com/uploads/files/202202041430085000.pdfIn PDF document text
    • https://medicraftindia.com/uploads/file/64518168952.pdfIn PDF document text
    • http://shesob.com/file/files/47750518964.pdfIn PDF document text
    • https://federazionespeleologicasarda.it/userfiles/file/zefawazeferopuri.pdfIn PDF document text
    • http://sanjosechakan.com/lib/kcfinder/upload/files/pupebekitenagupi.pdfIn PDF document text
    • https://www.highlandernepal.com/assets/ckfinder/userfiles/files/midem.pdfIn PDF document text
    • https://too.kg/wp-content/plugins/super-forms/uploads/php/files/59986ffe208d0168e50f1eb2c97b3984/58742396704.pdfIn PDF document text
    • http://xn--c1adbeke4asdefy.xn--p1ai/ckfinder/userfiles/files/dufevikogulisigagasibi.pdfIn PDF document text
    • https://contemporaryteas.in/admin/uploads/file/tebiduxolenazozimunat.pdfIn PDF document text
    • http://kgpms.org/kcfinder/upload/files/1519486477.pdfIn PDF document text
    • https://panegovernance.com/ourprojects/chowki/UserFiles/file/xapofizofiren.pdfIn PDF document text
    • https://nppmaudaha.in/ckfinder/userfiles/files/nazuzutazokaxuwakofaru.pdfIn PDF document text
    • http://jedwines.com/cmsCart/upload/file/53213877096.pdfIn PDF document text
    • https://doradca-bankowy.pl/files/files/3804232232.pdfIn PDF document text
    • http://camdohungdung.com/upload/files/jirixove.pdfIn PDF document text
    • https://suacuachuyennghiep.com/uploads/files/2078534685.pdfIn PDF document text
    • http://werkkledingverkoop.nl/images/docman/files/varoxikupew.pdfIn PDF document text
    • https://yubit.co.za/XSRYdR1H?utm_term=bribe+ullu+originals+freePDF link annotation
    • 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_off0001fb61.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0001fb61.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001fb61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1FB61 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00021281.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x21281 10584 bytes
SHA-256: 785bc6fac631a3fdf0905dd579eeac917e87d8c5c7e3bf4e905c4566fffcbf6e
font_02_sfnt_off00022ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22AC3 19596 bytes
SHA-256: 5c4db11e60f471e2b10a100da1c4356d2168f5c7734c72ca2d69f65c80f5dc5f