Malicious PDF — malware analysis report

Static analysis result for SHA-256 78246b6c1e3d2ee5…

MALICIOUS

PDF

80.2 KB Created: 2021-10-20 16:27:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 70b6399ba8b20821a09f4ceb8be4bccf SHA-1: 7067f55484d9abdc36fd1f295475910de48e1c28 SHA-256: 78246b6c1e3d2ee53be114c02856e45ac9e99c97a4c00a8dcc57fc87f8f738dd
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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 http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/16166dad5e3148---17965685726.pdf In PDF document text
    • https://taksis.lv/taksis/userfiles/file/94334137397.pdfIn PDF document text
    • http://indianspringhomes.net/userfiles/files/82177677676.pdfIn PDF document text
    • https://adci.vn/data/upload/file/moxevemuvudevov.pdfIn PDF document text
    • http://tuvantindat.com/uploads/2021-10-08/images/files/tegapupukudikubixarufixut.pdfIn PDF document text
    • http://cimkezes.hu/uploads/ckfinder/userfiles/files/rutiveteluvimesezobafi.pdfIn PDF document text
    • http://synergienetwork.net/userfiles/file/47110786618.pdfIn PDF document text
    • http://rubella2.integra-sh.com/userfiles/file/21415771638.pdfIn PDF document text
    • http://alvit-bk.ru/userfiles/file/birudux.pdfIn PDF document text
    • http://mentor-tutor.com/newGroserLikeProject/uploads/files/61739512191.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1613a67865b652---69801400141.pdfIn PDF document text
    • http://vizit-k.net/uploads/editor/files/sepitugexajajimip.pdfIn PDF document text
    • http://abwmountvernon.com/uploads/files/vemitibixemowaxupame.pdfIn PDF document text
    • http://bassonconsulting.mc/userfiles/file/notikekas.pdfIn PDF document text
    • http://studiotecnicoligioni.com/userfiles/files/52818390185.pdfIn PDF document text
    • http://weshare.vn/attachment/files/41657482960.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/33569325832.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616954710f3ae---11596623691.pdfIn PDF document text
    • https://lockerova.eu/admin/upload/documents/wajevivobarobob.pdfIn PDF document text
    • https://institut-arabe.org/ckfinder/userfiles/files/sekifagopirorinakixabige.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1616b50de0ad8d---33676477958.pdfIn PDF document text
    • http://lecieldesandes.fr/ckfinder/userfiles/files/2808433814.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/Z3ufxtS7Wvw/uplcv?utm_term=another+word+for+solar+energyPDF 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 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_off0000d61d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD61D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ee2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE2F 17692 bytes
SHA-256: 5d3023744f427a1f5821542a5fdc9601434fb23a1dee321546b172c88912b35b
font_02_sfnt_off00011b24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B24 10720 bytes
SHA-256: ee30c2101070c337b693b130a489a8d4ef60e3c38860bb63f1378db712691a78