Malicious PDF — malware analysis report

Static analysis result for SHA-256 465e2ffbf6039d97…

MALICIOUS

PDF

50.3 KB Created: 2020-10-27 23:10:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 2200ea57517af2bc9281315a62066d2b SHA-1: 9062472a07194379114d7958b0850c3f7432b767 SHA-256: 465e2ffbf6039d97b099942e343e1d411ccd98e49b25b9630cb351c09ecec2eb
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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 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.
  • 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.
  • 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://ttraff.me/pify?keyword=7th+grade+basketball+team+rankings In PDF document text
    • https://norajinojo.weebly.com/uploads/1/3/4/3/134381333/jevamagasog_piketegonune_peteguro.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/belapigojat.pdfIn PDF document text
    • https://bubixoduxufito.weebly.com/uploads/1/3/1/0/131070588/f32a19ad1.pdfIn PDF document text
    • https://vodexekuteb.weebly.com/uploads/1/3/0/7/130776001/lusavevej_jevejugavu.pdfIn PDF document text
    • https://pojutawetuje.weebly.com/uploads/1/3/1/3/131382470/mijapomigaruxoj.pdfIn PDF document text
    • https://xuwuperozaposa.weebly.com/uploads/1/3/2/3/132303395/4295339.pdfIn PDF document text
    • https://kifenefaru.weebly.com/uploads/1/3/4/3/134327755/d3452b6.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/xurixado/gejujituxivogijasala.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/ms_excel_interview_questions_and_answers_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jidosatikim/wopapopegusef.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/4804267693.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/beruranu.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/21630093324.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/rajudef.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/85326290.pdfIn PDF document text
    • https://s3.amazonaws.com/vatakefojunib/tavogazixigawusesakapax.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/boganu.pdfIn PDF document text
    • https://s3.amazonaws.com/wilugugo/save_smaller_file_size_photoshop.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/oatey_purple_primer_msds.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/losisawikobofone.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/problem_solving_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/graduated_exercises_in_translation_from_arabic_into_english.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/wazogaxivagefijavatizodi.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_off00008465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8465 5428 bytes
SHA-256: f76ad210161a6e59f2015163b41717cd6ff78c77ef5543bf562ead80d64cc48b
font_01_sfnt_off000096b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96B2 10820 bytes
SHA-256: 645ca5ddd89f57658cef44ba7fa2b6e711e1f446e65435f8fbb8d7534dedd5d9