Malicious PDF — malware analysis report

Static analysis result for SHA-256 c355f1645663888b…

MALICIOUS

PDF

70.6 KB Created: 2021-02-26 09:27:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 384e3ba0fd61536f456f159db3e3a6b0 SHA-1: 7729e86b55e0fdc0e0476610401c7440f7e405d8 SHA-256: c355f1645663888b87d45b38cb0ad78a69f5f34294e31100a1d1b63af632d0da
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/award?keyword=snapper+rear+engine+mower+seat In PDF document text
    • http://dkmz2.club/588904944215bxu8.pdfIn PDF document text
    • http://simkosa.website/nufekunpmz2i.pdfIn PDF document text
    • http://gadetebes.sportsontheweb.net/why_wont_my_brother_printer_print_in_color.pdfIn PDF document text
    • http://zugapuvu.mywebcommunity.org/how_much_to_rebuild_a_302_v8.pdfIn PDF document text
    • http://manybigs.space/jepovezibowagukijazeqvsjj.pdfIn PDF document text
    • http://mazafaka69pussy.online/89870349730e86q7.pdfIn PDF document text
    • http://becloud.website/bibliography_mla_and_apa_formato0fwn.pdfIn PDF document text
    • http://zopokujejisolan.getenjoyment.net/power_flow_yoga_class_sequence.pdfIn PDF document text
    • http://funogager.22web.org/lilomumavefa.pdfIn PDF document text
    • http://alisabor.design/gawuzadavurz1e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416669/normal_5fcfa0b5c76e7.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/349488992.pdfIn PDF document text
    • http://mstmail.space/spotify_offline_installer_downloadn7u1f.pdfIn PDF document text
    • http://mnatural.space/anderson_.paak_malibu_zipvlyjo.pdfIn PDF document text
    • http://lavkavkusa.store/zenanuladipisuloxokd338n.pdfIn PDF document text
    • http://idealsit.space/timex_nature_sounds_alarm_clock_manualxco9x.pdfIn PDF document text
    • http://lovepositions.info/monster_girl_encyclopedia_wiki_pharaoh637b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385421/normal_601d0c6d4203f.pdfIn PDF document text
    • http://getsol.xyz/modal_verbs_and_adverbs_ks2_worksheet9xou6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xefobimulekojuw.epizy.com/mumaboki.pdfIn PDF document text
    • http://miganuvag.myartsonline.com/are_there_any_recalls_on_the_2012_hyundai_sonata.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_off0000d500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD500 5300 bytes
SHA-256: 6b88fd2e1dba981b85a5c85c0a9d2c15f708300c8ca7adc18e8efa8b2b21505d
font_01_sfnt_off0000e705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE705 10776 bytes
SHA-256: a25cbd552c89f8d4c8498bb9d712f5ad2db8669f1b4aa6f7cb1c3c043256c09d