Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc06b1852527fcf…

MALICIOUS

PDF

80.2 KB Created: 2021-09-09 05:20:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: b4018c16530066e7b447699e28462747 SHA-1: 4b109bf0131763cfa0a81828667baafda0f4bfb9 SHA-256: 1dc06b1852527fcf6b86e3e6435740feeb90156b3959c22a85d7ef634b2c6f1c
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://marathon-gexin.com/Uploadfiles/files/tokafutasetexe.pdf In PDF document text
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/42016302c90432f50836382508b6bc42/mekawixurovi.pdfIn PDF document text
    • http://posuni.com/userfiles/file/35675221542.pdfIn PDF document text
    • http://www.barbazan-debat.fr/ckfinder/userfiles/files/83954373405.pdfIn PDF document text
    • http://yeosingol.com/FileData/ckfinder/files/20210903_9EED9013612B79F1.pdfIn PDF document text
    • https://denimder.org/resimler/files/rirazutugipadusa.pdfIn PDF document text
    • http://gndpta.eu/news_objects/files/53468939147.pdfIn PDF document text
    • https://amthanhanhsangchinhhang.vn/upload/files/29790987368.pdfIn PDF document text
    • https://dbhattacharjee.com/ckfinder/userfiles/files/tizadokugogep.pdfIn PDF document text
    • http://teknis.it/userfiles/files/67076209031.pdfIn PDF document text
    • https://netlandschool.cl/files/20203844852.pdfIn PDF document text
    • https://mobilaide.com/upload/editor/file/nalobupazaripelukobamowa.pdfIn PDF document text
    • https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/eca2db5d18319f0767a1a6c9b984aa28/rufaz.pdfIn PDF document text
    • http://www.hon-ro.hu/userfiles/files/64691818735.pdfIn PDF document text
    • http://risme.vn/files/58916243289.pdfIn PDF document text
    • http://abwclayton.com/uploads/files/funofixoxoxi.pdfIn PDF document text
    • http://hosungtour.net/FileData/ckfinder/files/20210901_25C49E479995245C.pdfIn PDF document text
    • http://vividconcept.in/userfiles/file/23677848871.pdfIn PDF document text
    • http://vandervalk.reviews/app/webroot/files/userfiles/files/dumufuxoliwi.pdfIn PDF document text
    • https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136955223d8c---sepitivirasorugadisu.pdfIn PDF document text
    • https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/afed3395f2bc937e421d190014d11403/58463570267.pdfIn PDF document text
    • http://chandigarhdatarecovery.com/files/file/98508805832.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+find+the+password+for+your+mobile+hotspotPDF 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_off0000d27b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000ea8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8D 18240 bytes
SHA-256: cdb8c4332d0c82feef3c1e04022e328ca73e2647668d1ca2580e5588d37cd8bd
font_02_sfnt_off00011995.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11995 11192 bytes
SHA-256: 73197e10f4462e04a62afcf1c09bc87acd9e2497e0443cad904e88a673f631f5