Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e33e7eedb081f87…

MALICIOUS

PDF

179.8 KB Created: 2021-12-04 10:07:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 4b5263f13b361a12dad24be133e6a1da SHA-1: a24ae6029ea74e04c2eac1ef3d9c1ffcff64d407 SHA-256: 4e33e7eedb081f8750bf66ee70b176468b4a7ca75370a826bd0892747d1e4665
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9501

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://hingliltd.com/userfiles/menuzug.pdf In PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16145825636802---viwagojivanikalurugonoxo.pdfIn PDF document text
    • https://a1-recruitment.a1-recruitment.ro/v2011/Files/fck_upload/file/melebekitibiwoxiti.pdfIn PDF document text
    • https://tlproduct.com/userfiles/file/jimolokegemiwujaliwirifel.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155f18599109---23267757524.pdfIn PDF document text
    • https://worldcastlive.com/userfiles/file/94938326462.pdfIn PDF document text
    • http://wych123.com/upload/files/vigofegogeteb.pdfIn PDF document text
    • http://npi-management.fr/ressource/site-image/files/xexem.pdfIn PDF document text
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/6pr3vi8q5bvnfuvo0h76h9vsqc/beseseraxov.pdfIn PDF document text
    • http://tartak-monis.pl/tartak/images/file/9384935879.pdfIn PDF document text
    • http://scouttautomotive.com/editor_uploads/system/files/56829585003.pdfIn PDF document text
    • http://1666-3668.com/attach/userfiles/file/xavebojil.pdfIn PDF document text
    • http://vattucongtrinh.com/userfiles/file/tevopebunogirezolug.pdfIn PDF document text
    • https://kinizsibank.inweb.hu/_user/file/lupagij.pdfIn PDF document text
    • http://ky-auto.com/uploadfile/files/97237637352.pdfIn PDF document text
    • http://syuncyoku.jp/upload/file/jomenomenawofibo.pdfIn PDF document text
    • http://pactolous.hu/upload/file/zorek.pdfIn PDF document text
    • https://gadd-asso.org/userfiles/file/pawafemapejelexijexerafuv.pdfIn PDF document text
    • https://gs-hemeringen.de/ablage/userfiles/files/42288632802.pdfIn PDF document text
    • http://benetworkingpro.com/ckfinder/userfiles/files/gefajabulilin.pdfIn PDF document text
    • https://imagebeaute.fr/userfiles/file/99551051647.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161518239a96a1---pupibividifafa.pdfIn PDF document text
    • https://nedimgame.net/calisma2/files/uploads/nuvekikunumekemejatig.pdfIn PDF document text
    • http://polletnv.be/uploads/files/67562756805.pdfIn PDF document text
    • http://slsnn.ru/content/file/92702097054.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/xPAns0MRe5M/uplcv?utm_term=biomaterials+science+ratner+3rd+edition+pdfPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000251aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x251AA 21104 bytes
SHA-256: edc77819407bbe67e935f2aff86903d46fd425db2c8731ffa057583b7cb9814f
font_01_sfnt_off0002870e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2870E 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00029db2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29DB2 11008 bytes
SHA-256: e58dea0d4cccbf368afaac9f9569155539649a09217e72020aea78f7795412e8
font_03_sfnt_off0002b743.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B743 1780 bytes
SHA-256: cf43ea07d0e14c5dadc3c8d1a3fd6347ba51c91ab3c5d9ef8ee3d45ec84741db