Malicious PDF — malware analysis report

Static analysis result for SHA-256 0774fd297e51f981…

MALICIOUS

PDF

69.3 KB Created: 2021-02-22 07:45:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a50187e6cc28bf741d26fe8409367cc3 SHA-1: 2ad3201990b5ff6da1c0c74f951b8290639baa1c SHA-256: 0774fd297e51f9812d92e17c4c69358aede4f70b82acc3360ae7775f120125a3
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=northouse+p.g.+leadership+theory+and+practice+pdf In PDF document text
    • https://cdn-cms.f-static.net/uploads/4409244/normal_6030dc25a878a.pdfIn PDF document text
    • https://cdn.sqhk.co/buganixezu/jixicjd/12709819297.pdfIn PDF document text
    • http://rostov-mobile-doctor.ru/49599745028kv31a.pdfIn PDF document text
    • http://itnegozio.info/kaththi_video_songs_hd_freeid3cu.pdfIn PDF document text
    • http://fb-ig-copyright.com/fcc_testing_reportnvu4p.pdfIn PDF document text
    • https://toxafowusolele.weebly.com/uploads/1/3/2/8/132815148/1620249.pdfIn PDF document text
    • http://lnstagram-copyright-supports.com/excel_vba_msgbox_value_of_variableq0det.pdfIn PDF document text
    • http://bilkaita.space/kreg_jig_micro_drill_guide_systemwqviu.pdfIn PDF document text
    • http://livecopyrightverification.com/berliner_platz_1_neu_answers8xs4s.pdfIn PDF document text
    • http://mazafaka69pussy.online/www.9xtunes.com_english_albums0qpo7.pdfIn PDF document text
    • http://chempion.coffee/draw_ballot_template_freeq2vif.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368228/normal_6032e1565a9ff.pdfIn PDF document text
    • http://parkji5x.xyz/jojuz1xyqq.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD071 5520 bytes
SHA-256: d443cbc6407c984eb38370c78bb5688a4a523166415c3392bc3f5efc61b5326b
font_01_sfnt_off0000e347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE347 10652 bytes
SHA-256: 6bdca7f67c53f6dd9ec0927e6c00aa35c89098f1304e7198a223ae0ce15ab8f3