Malicious PDF — malware analysis report

Static analysis result for SHA-256 191f4cf5db34b8fc…

MALICIOUS

PDF

78.0 KB Created: 2022-03-25 00:57:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 7b824ee7fa0b7502eda5408fe624d602 SHA-1: 9be66f088a5b9312b84a7b1abbb40684a487ef43 SHA-256: 191f4cf5db34b8fcafbeb732f8fcc2e90799fff7c77a64a79b71392f81d02a6b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://wirut.co.za/YmrXLWy8?keyword=what%20version%20of%20ksp%20is%20on%20ps4 PDF link annotation
    • https://lafowesatumu.weebly.com/uploads/1/3/4/5/134503032/jizudemufiwati_nekowegozafow_betuvagek_vivubusisubuwas.pdfIn PDF document text
    • https://kopadababipa.weebly.com/uploads/1/3/4/5/134502609/7951b3e4d15f73.pdfIn PDF document text
    • https://ronurakegilapoz.weebly.com/uploads/1/3/4/8/134852428/f12a8ab.pdfIn PDF document text
    • https://danifiwap.weebly.com/uploads/1/3/4/5/134585556/0a07d21ec.pdfIn PDF document text
    • https://maxuvejalova.weebly.com/uploads/1/3/4/2/134265339/5641975.pdfIn PDF document text
    • https://kenojulovananav.weebly.com/uploads/1/3/4/0/134016885/sobexemafede-xabigobowiv.pdfIn PDF document text
    • https://xuxufagitagagi.weebly.com/uploads/1/3/0/7/130740521/subakavivebu.pdfIn PDF document text
    • https://toromadon.weebly.com/uploads/1/3/4/5/134523466/634969.pdfIn PDF document text
    • https://dapevorejux.weebly.com/uploads/1/3/4/6/134695165/2739233.pdfIn PDF document text
    • https://zibozofos.weebly.com/uploads/1/3/4/8/134896422/repubexoxetepisutivo.pdfIn PDF document text
    • https://remezovegaz.weebly.com/uploads/1/3/1/4/131406605/zajoluf.pdfIn PDF document text
    • https://paboludozov.weebly.com/uploads/1/3/4/3/134333588/zigenu_tesuderezug_mizazatoxagit_jurijobodefe.pdfIn PDF document text
    • https://duxegebipuvakij.weebly.com/uploads/1/3/4/0/134095857/2174654.pdfIn PDF document text
    • https://bilewemebit.weebly.com/uploads/1/3/5/9/135964156/4f18ae7ae.pdfIn PDF document text
    • https://fagisidide.weebly.com/uploads/1/3/2/6/132682833/pikevopima-lovafugiwekuber-temulufurug.pdfIn PDF document text
    • https://pidakobanaxob.weebly.com/uploads/1/3/4/4/134463411/jodonikimizun_medupem_savofimojavi_jopaxokipi.pdfIn PDF document text
    • https://danifiwap.weebly.com/uploads/1/3/4/5/134585556/1107257.pdfIn PDF document text
    • https://dutilugamon.weebly.com/uploads/1/3/5/3/135301630/kazediviboro.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_off0000cbf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBF1 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000e295.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE295 10636 bytes
SHA-256: 8d2a57607c7cdf79cd256935ed08223e325080b01399c1d2694d8f80d7cf5938
font_02_sfnt_off0000faf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF5 17824 bytes
SHA-256: 2da66081b3a85c868273e7a59a498d963ebd13420f53ad0ae87d227593e7b1bd

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