Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d671645e15a4df…

MALICIOUS

PDF

85.1 KB Created: 2021-08-15 01:51:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 3e4d8695236cedb967b1162747b1289d SHA-1: 322eafdb69fc6c2c0085b60ef92def00980d44ae SHA-256: c5d671645e15a4df2d02b071b58aed7eb180d937d088c4b6d46f991e28eba4fc
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://irlanc.ru/uplcv?utm_term=logitech+720p+driver+download+windows+10 PDF link annotation
    • https://zlatartopalovic.rs//files/xevipupo.pdfIn PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/16097c3bee8ccb---1708682837.pdfIn PDF document text
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/91c784948551aebf2ec13727ff28ef04/59509479807.pdfIn PDF document text
    • http://newtrichur.com/userfiles/file/kinef.pdfIn PDF document text
    • http://e-hematologica.com/users//file/96049311951.pdfIn PDF document text
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/2c6cbe5bd5ec5cd2ce7b93902893828d/66213871332.pdfIn PDF document text
    • https://agsposure.org/wp-content/plugins/super-forms/uploads/php/files/5af0135a51470b9780776183d2140a3e/85992013633.pdfIn PDF document text
    • https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/39cbd1b500f75023600997d01adb70d0/sixerufolififu.pdfIn PDF document text
    • http://samtekelektrik.com/files/nakowiwenumodumotegufub.pdfIn PDF document text
    • http://romanakladatelstvi.cz/userfiles/file/4624162021.pdfIn PDF document text
    • https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5c59d4b38---balifap.pdfIn PDF document text
    • http://captainkillmite.com/uploads//files/202108071842109738.pdfIn PDF document text
    • https://hgb.se/filer/file/goxamipax.pdfIn PDF document text
    • http://scarpatti.com/files/kadijerifitijivikesirodoj.pdfIn PDF document text
    • http://macautemple.com/userfiles/file/galutezotuki.pdfIn PDF document text
    • http://smepil.com/ckeditor/userfiles/files/batexokinexewenago.pdfIn PDF document text
    • http://writtenmail.com/upload_images/file/bodarim.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user///file/_0334987001627122849.pdfIn PDF document text
    • https://paklya.su/design/img/upload/file/gesupajagepemezemimafe.pdfIn PDF document text
    • http://portalcom-b2b.es/img/user///file/_0113747001622857918.pdfIn PDF document text
    • http://klick-tipp.info/ckfinder/userfiles/publics/files/sesodidikitoboxovadak.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c5ad67cdfd6---regesujuwesokezonuzelaguv.pdfIn PDF document text
    • http://rubensova16.cz/files/file/41959835333.pdfIn PDF document text
    • https://www.weboonline.com/ckfinder/userfiles/files/88789223078.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_off0000e8b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000100c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100C8 11244 bytes
SHA-256: 808de27ff3e116639de735f8a5ac0a3b4241a6528634de1cdffa8a422e9f7c5c
font_02_sfnt_off00011b0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B0E 16572 bytes
SHA-256: ed2c369eef81a8100f84f42d1fb11accab5fba0253513533f4236aa2d76f893f