Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1eaee30b486d698…

MALICIOUS

PDF

71.8 KB Created: 2021-02-16 23:28:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b0fef86306f5b18a7ebf314314549d27 SHA-1: acb00c77294960761f7141ca86437a69507cc410 SHA-256: c1eaee30b486d698374e4c52d5e249b42510b48eda3ddd8de7b59b574cd8f95a
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://leonvi.ru/wix?keyword=subject+verb+agreement+quiz+with+answers+pdf PDF link annotation
    • http://scoretdho.best/watch_history_channel_youtube_tv2eojw.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuvezosapa/alifmAl/pregnancy_tracker_week_by_week.pdfIn PDF document text
    • http://wildber.store/zizulozuleguzujzg44q.pdfIn PDF document text
    • http://summerita.fun/25337757313p0rbp.pdfIn PDF document text
    • http://women-ita.space/payrange_mobile_app9q7ua.pdfIn PDF document text
    • https://cdn.sqhk.co/rubutemoxe/hFjcjhd/vomimikobujep.pdfIn PDF document text
    • http://1xbet-registrat.site/massachusetts_appeals_court_reporter_of_decisionse4rh7.pdfIn PDF document text
    • https://cdn.sqhk.co/foroboreb/geDhetZ/71599743065.pdfIn PDF document text
    • https://cdn.sqhk.co/luwivimexu/jos9mhh/nibalevefado.pdfIn PDF document text
    • https://vogaxuruxav.weebly.com/uploads/1/3/4/3/134352923/kopozidonuxapu-javikasakudalu.pdfIn PDF document text
    • http://cashtanks.fun/asphalt_6_adrenaline_androidgamegratisan70rbf.pdfIn PDF document text
    • https://cdn.sqhk.co/lepemafe/Wjdfgja/cheap_kid_birthday_party_places_near_me.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gedemuzufo.epizy.com/competitive_advantage_of_information_technology_in_business.pdfIn PDF document text
    • http://zevovalik.epizy.com/amrinder_gill_songs_ki_samjhaiye.pdfIn PDF document text
    • http://rinonefor.rf.gd/simple_acquisition_strategy_template.pdfIn PDF document text
    • https://s3.amazonaws.com/pulavokaxe/tidemiw.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/alcohol_52_free_windows_xp.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_off0000d98e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98E 6184 bytes
SHA-256: e52274ebda2942207aad8d2008c1fb21919009762e3f902e0eff3d783e44b2b1
font_01_sfnt_off0000ee86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE86 10484 bytes
SHA-256: 5c0c44e7db9415047b96a20e112c4e4cfc267af05a08bc9a0adedb795df2a9da