Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ad15120bae336c0…

MALICIOUS

PDF

69.3 KB Created: 2021-10-06 14:07:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-20
MD5: 911529f7c8e74c689cf5ff90f9feb9aa SHA-1: 370cbe12cae4d38230ab13626b7002749af3de10 SHA-256: 9ad15120bae336c0e8d5d0fa6bc50a9459b9c07f4cf3eb820e7adc1614e020ce
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9965

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://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/fasixamufelebore.pdf In PDF document text
    • http://midospa.com/upload/files/29547485203.pdfIn PDF document text
    • http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138fba929998---xafumupisigepememu.pdfIn PDF document text
    • https://techlan.pl/files/file/76283501610.pdfIn PDF document text
    • http://nordicwalkingturak.hu/_user/file/libidibabiradurevowo.pdfIn PDF document text
    • http://cabinet-blin.fr/ressource/site-image/files/2420856489.pdfIn PDF document text
    • http://canshu.dlzj.net/upload/files/20211003030550339969.pdfIn PDF document text
    • https://brazilairporttransfers.com/ckfinder/userfiles/files/55647612656.pdfIn PDF document text
    • https://sakkestadbil.no/userfiles/file/newerikolofiloloresi.pdfIn PDF document text
    • http://leebyunghun.kr/new/upload/board/files/bijazinisuvupazotefe.pdfIn PDF document text
    • https://envirotechindia.net/admin/userfiles/file/38318465617.pdfIn PDF document text
    • http://bargiel.com.pl/ckfinder/userfiles/files/19019813618.pdfIn PDF document text
    • https://resttour.com/images/userfiles/files/sidigigonerekudovoxulo.pdfIn PDF document text
    • http://www.luna1956.com/images/library/File/66633861406.pdfIn PDF document text
    • http://terezmisszio.eu/files/file/pusovaw.pdfIn PDF document text
    • https://rsvforum.com/userfiles/file/8157583632.pdfIn PDF document text
    • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/47d244f2d1be8747d9a22b3388761e4c/50637071566.pdfIn PDF document text
    • http://residencelesaline.it/userfiles/files/7404986715.pdfIn PDF document text
    • http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/161428d0d95669---49402652911.pdfIn PDF document text
    • https://sweetburden.com/upload/users/files/zubiwopag.pdfIn PDF document text
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1613b519335752---rujazunasiletoj.pdfIn PDF document text
    • http://cautrucpalang.vn/webroot/img/files/76087969193.pdfIn PDF document text
    • http://highdeal.linkeo.net/ckfinder/userfiles/files/letokadatumufanivemavip.pdfIn PDF document text
    • https://kermiradiatoriai.lt/images/files/zumogudemelogopagelivoz.pdfIn PDF document text
    • http://hissekurban.com/resimler/files/suseru.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=avoid+at+all+costsPDF 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_off0000b47d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000b47d.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b47d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB47D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cc94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC94 10076 bytes
SHA-256: 3da0a89a143ef5436d8a0f3000ce0c0b20192b42e8a7e18594e1a8f1a826c11b
font_02_sfnt_off0000e322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE322 14636 bytes
SHA-256: b8efec3c6840676faa6235af983c6c3be472b303db85eee74f5b8de7f785eec7