Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2e4577c2a882ef1…

MALICIOUS

PDF

70.2 KB Created: 2021-03-12 15:17:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ad8c153e9b2725a06eb278ca3e72689d SHA-1: 175343598045282e1b587519fe5e4a9936a5eb5a SHA-256: e2e4577c2a882ef153f579c8aa1801deff9000db5ef6a5007791b2c46343b300
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://resalured.ru/wix?keyword=political+cartoons+answers PDF link annotation
    • http://polfact.site/rizakovogovokuwenujolexogjyg39.pdfIn PDF document text
    • http://torchqbfl.fun/77087043772a4mlj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390330/normal_60360c75ef861.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369904/normal_6019b962ebcde.pdfIn PDF document text
    • http://cmbmarketing.agency/uses_of_computer_for_class_2_worksheet37jns.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378379/normal_6001b9da8e9b3.pdfIn PDF document text
    • http://raisinslabs.club/782511237692sm6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450240/normal_60387d1eed91c.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/godewumazek/4762778213.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/nadizavozakozosul.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/html_format_notepad_plugin.pdfIn PDF document text
    • https://s3.amazonaws.com/bizamesuwepe/call_details_list_app.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/nda_2_answer_key_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/widiku/simple_email_signature_html_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wizitifowubux/mono_lake_arsenic_life_form.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/example_answers_behavioral_based_interview_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/gudulakeremidiromebu.pdfIn PDF document text
    • http://www.readwritethink.org/classroom-resources/lesson-plans/analyzing-purpose-meaning-political-7In 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_off0000d88f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD88F 4888 bytes
SHA-256: d91d24cbfca51be8f72989e0729389bc0d3d19d686c83d5cd3ea016d90360542
font_01_sfnt_off0000e94b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE94B 10292 bytes
SHA-256: a85aa6866109963e9a9690faaad64a30b423f285c043e3b90feeac410770144d