Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d0168f674318d4…

MALICIOUS

PDF

86.8 KB Created: 2021-08-13 13:42:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-27
MD5: 5f6e67b9d15d4dd69081c865a9e83499 SHA-1: d6aade5d54d2192f04aeb41c988aefd248d64afa SHA-256: c7d0168f674318d461f583da0dea574d934a1a4cc897240052364d20ecbe2e18
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://www.tiendadelbordado.com/ckfinder/userfiles/files/1576675182.pdf In PDF document text
    • http://bhk-aindling.com/userfiles/files/98332154870.pdfIn PDF document text
    • http://bwc.lt/i/pigerunejupibe.pdfIn PDF document text
    • https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d52df514bf---72434428326.pdfIn PDF document text
    • http://www.lightingandhvacexpo.com/wp-content/plugins/super-forms/uploads/php/files/350d74bf7e72552fbce0bd12311d2ec0/94819180950.pdfIn PDF document text
    • http://podiummoda.ru/userfiles/file/tumafolafelutuzurup.pdfIn PDF document text
    • http://controlsystemco.com/cache/fck_files/file/jizodapobanapuwenuvotofiv.pdfIn PDF document text
    • https://pioneerlift.com/upfiles/editor/files/xikidefinajagekimufej.pdfIn PDF document text
    • https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/5cbad3c9cc39bf6c5fa74808a1472ddb/93474229572.pdfIn PDF document text
    • http://ehoron21.mn/uploads/files/liputabedotep.pdfIn PDF document text
    • http://opakowania-loga.pl/zdjecia/fotki/file/3168861349.pdfIn PDF document text
    • http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a14b60b7269---dutido.pdfIn PDF document text
    • http://maximaviajes.com/FCKfiles/file/domofow.pdfIn PDF document text
    • https://dragulf.no/files/file/82246666333.pdfIn PDF document text
    • http://controldellaves.com/app/webroot/arxius/file/bewugi.pdfIn PDF document text
    • http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160bb3bac69554---renisoja.pdfIn PDF document text
    • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/5c77edfd3e9be9658f595c656665dc80/69406426211.pdfIn PDF document text
    • http://groupkaishan.com/d/files/35300068783.pdfIn PDF document text
    • https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/a3a62e348fec3d874fa55f87f47c4b27/36465612592.pdfIn PDF document text
    • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16086e90ae82df---87404023396.pdfIn PDF document text
    • http://ekotronic.eu/files/file/momewemalodo.pdfIn PDF document text
    • https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/7f69fb3feafd1adbf6b7d7ca828100de/fizinujigedunidiw.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=odisha+b.ed+entrance+exam+syllabus+2020PDF 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_off0000ee88.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ee88.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ee88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE88 16792 bytes
SHA-256: ed68869ebc8043a9fd5662392a45cc4c6603f9240dc40bf5e99e3de83b40fe4a
font_01_sfnt_off00011a57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A57 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0001326e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1326E 11304 bytes
SHA-256: 31c7e3e2307c194c640e3adc42521387254df08e1dce79aeecf5aaa226da5958