Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7fa18879dc1ff2…

MALICIOUS

PDF

84.5 KB Created: 2021-09-13 09:51:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 576cdfd3230e5d7af7421abbd4cb6221 SHA-1: 062e492e5fb916189ed7f45ce0e0b7e75e2444f2 SHA-256: cd7fa18879dc1ff209b813a8aa21643a49b526c2ad09fc7fb27c14abaee6f7fa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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 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://inwebjor.ru/uplcv?utm_term=ayoba+apk+download PDF link annotation
    • http://www.xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/79171049033.pdfIn PDF document text
    • http://olympusflights.com/files/files/bupulisoxusolom.pdfIn PDF document text
    • http://antwerp-reefer-tournament.be/argt/files/81667641401.pdfIn PDF document text
    • https://worldpigment.com/image/upload/File/41189539038.pdfIn PDF document text
    • http://www.saito-ken.jp/userdata/file/92467812751.pdfIn PDF document text
    • https://briljant-maleri.se/UserFiles/files/58000741159.pdfIn PDF document text
    • https://ctapigroup3.com/contents/files/27080286920.pdfIn PDF document text
    • https://matricula.netlandschool.cl/files/piwitoxotag.pdfIn PDF document text
    • http://kdwatch.net/upload/files/2021090111140728.pdfIn PDF document text
    • http://stlnsk.ru/uploads/file/vewowimesukabugilugiforop.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/wasukikavodomegogotu.pdfIn PDF document text
    • https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/zejudupafo.pdfIn PDF document text
    • https://uclerbaklava.com/resources/file/18291962766.pdfIn PDF document text
    • http://registermycompany.in/admin/userfiles/file/sitowixisufap.pdfIn PDF document text
    • http://doubler-son-capital.com/photos/files/18094040014.pdfIn PDF document text
    • https://camelcarpet.org/d/files/4783559423.pdfIn PDF document text
    • https://www.grdr.org/paidel/ckfinder/userfiles/files/22484949327.pdfIn PDF document text
    • http://www.gobarging.com/uploads/textareas/file/jofir.pdfIn PDF document text
    • http://chinalabware.net/d/files/87545965501.pdfIn PDF document text
    • http://gazduire-domeniu.com/UserFiles/file/vanawomuwilag.pdfIn PDF document text
    • https://fgcrubochi.com.ng/ckfinder/userfiles/files/76533818243.pdfIn PDF document text
    • http://speckrepej.com/upload/file/geworopuwigowodesusibawi.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_off0000e4ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fcc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCC5 10208 bytes
SHA-256: 57e5968f11b4a49a5f5b2b79974f9c815f85937815fe148d71ae6ee41d35f0a5
font_02_sfnt_off00011392.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11392 18692 bytes
SHA-256: ec8c2d7eaa89af6f363a39000c02eaf92bd2d55c975561f9340ec462208fdceb

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