Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbd22e64201d6c5d…

MALICIOUS

PDF

80.6 KB Created: 2021-02-20 01:22:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: be67442bad47d8f49e6bc7749a87dd0c SHA-1: 0b5faebe27123380383c9ac2647c93213a0f1809 SHA-256: fbd22e64201d6c5dc2b739f7630e62579432c165626200c4709d996042c8c489
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous external links, a common tactic for link farms and phishing sites, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery. The embedded URLs point to potentially malicious domains, and the document body, though truncated, suggests a lure related to a vehicle manual.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://jottigo.ru/strik?utm_term=manual+de+la+ford+windstar+2003 PDF link annotation
    • https://cdn.sqhk.co/ganuniwiku/jji5hhp/dimupowefuxeriponunizemib.pdfIn PDF document text
    • http://mattelipsticks.site/gardenscapes_2_free_online_no_downloadwv18y.pdfIn PDF document text
    • https://vatikaleme.weebly.com/uploads/1/3/5/3/135386674/vamog.pdfIn PDF document text
    • https://texejuzaw.weebly.com/uploads/1/3/0/7/130775796/roxixe_rinimokaniw_busuj.pdfIn PDF document text
    • https://punafatig.weebly.com/uploads/1/3/1/4/131408139/9f38fea85.pdfIn PDF document text
    • https://vogoworelo.weebly.com/uploads/1/3/4/2/134266182/0f7c3a5ca3e.pdfIn PDF document text
    • https://cdn.sqhk.co/vujagefamig/RMhc3eE/womotigipebawuremupep.pdfIn PDF document text
    • http://mists.space/vw_car_dealers_near_me8iq5e.pdfIn PDF document text
    • http://vulgargirls.fun/xepujider7nh4s.pdfIn PDF document text
    • http://coolmag.biz/82696950240njnvv.pdfIn PDF document text
    • http://item-mask.top/58537161912rqmjx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fasudikek/86092993471.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/maeve_binchy_books_free.pdfIn PDF document text
    • https://s3.amazonaws.com/kukupunopedon/aankhen_old_song.pdfIn PDF document text
    • https://s3.amazonaws.com/kegovev/chamma_chamma_song_raagsong._me.pdfIn PDF document text
    • https://s3.amazonaws.com/belapawerezuju/cute_baby_girl_pictures.pdfIn PDF document text
    • https://s3.amazonaws.com/nonabafat/paxubujisobuk.pdfIn PDF document text
    • https://s3.amazonaws.com/kovibu/accenture_australia_annual_report.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE7E 5436 bytes
SHA-256: d2adb46b6b4fadb3f18973ce74fc4ca76569666fa83122cebf5299151099c56d
font_01_sfnt_off00011128.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11128 10504 bytes
SHA-256: 02a3d1f81a5e6b4cb6421fe655eba4d85acadb7cd85692fe944245f8eeb48cc4

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