Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cb156a526a339f…

MALICIOUS

PDF

75.5 KB Created: 2022-03-30 09:37:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: a54a6120c99b0dc580e97f59ce7006da SHA-1: 5055c13fcb11ab7b736193b08a11efd674adb6ad SHA-256: c0cb156a526a339f9e7c41706a110b9bf26d86e8d4615857cc106e2467160c93
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://mifuj.co.za/YmrXLWy8?keyword=what%20animal%20has%20the%20most%20offspring PDF link annotation
    • http://hcpcsz.com/upfolder/e/files/20220205213553.pdfIn PDF document text
    • https://disakenukewawo.weebly.com/uploads/1/3/1/3/131383770/3466422.pdfIn PDF document text
    • http://www.yevres.fr/ckfinder/userfiles/files/jipexomekuvedizodurebu.pdfIn PDF document text
    • https://dawofatodir.weebly.com/uploads/1/3/4/7/134756430/9252403.pdfIn PDF document text
    • https://kingsnews.org/app/webroot/js/image/files/rojidorikevemowiboxiba.pdfIn PDF document text
    • https://xikixunajaxata.weebly.com/uploads/1/3/5/9/135959014/topato.pdfIn PDF document text
    • https://melnikhouse.com/userfiles/file/98966403533.pdfIn PDF document text
    • http://phunggia.biz/userfiles/file/xupidozebagasefeji.pdfIn PDF document text
    • https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620cbc797543d---fakugedewejubinuxu.pdfIn PDF document text
    • https://aravalivssamiti.org/admin/assets/ckeditor/kcfinder/upload/files/82957404.pdfIn PDF document text
    • https://alatheir.com/atheirwsfiles/file/jazivofomixixava.pdfIn PDF document text
    • https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/1ba8843212756f1178005457d3e9d100/fisusemi.pdfIn PDF document text
    • http://kolkandkolkdesign.com/site/data/ws/files/nilitumisi.pdfIn PDF document text
    • http://seghers.kr/data/editor/file/21033499162079875da534.pdfIn PDF document text
    • http://boekenwinkelindex.nl/images/uploads/superux.pdfIn PDF document text
    • https://www.quartzlock.com/userfiles/files/dikufu.pdfIn PDF document text
    • http://tourtraveltalk.com/app/webroot/js/kcfinder/upload/files/242766604.pdfIn PDF document text
    • http://karinameal.ru/imgdish/files/53287005215.pdfIn PDF document text
    • https://hyundainhapkhau.vn/upload/files/pufamuvedigokizu.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 extracted file (font_00_sfnt_off0000c35f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c35f.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c35f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC35F 17480 bytes
SHA-256: 7cbd6eaff45d6fa4c4eb37fc03b89a94f850a508834241cab53f5e92a209112b
font_01_sfnt_off0000f106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF106 10796 bytes
SHA-256: d730602ab0a220b760a1924252e5fd4e82153c603cf473b67edccbfb038370a2
font_02_sfnt_off000109b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109B5 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336