Malicious PDF — malware analysis report

Static analysis result for SHA-256 01071983d1e77514…

MALICIOUS

PDF

72.7 KB Created: 2021-02-28 08:55:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 818ea8b49ec79b8d08afa70e9e42504f SHA-1: 060dc71588422aeb0ecf2a3a045c21cff8652ab9 SHA-256: 01071983d1e77514cc8c38cec524863a706e59f4cc1baa0c9269f8e69ae764fe
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://ponafet.ru/wb?keyword=how%20to%20repair%20whirlpool%20washer%20not%20spinning PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450043/normal_5fca9359ead96.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413013/normal_603aeac13178a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486772/normal_60346b5c398f2.pdfIn PDF document text
    • https://cdn.sqhk.co/xedomobedusi/Lia3hig/78985466957.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407062/normal_5fd6315a82048.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416504/normal_5ff6bf61b5e9f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376127/normal_5fff50e8485a5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408586/normal_5ff2b52ceb0e8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492593/normal_5fe4b57d8a588.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365570/normal_5ffbc1f728c03.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417413/normal_603a152334f9a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473031/normal_6005a1e200a96.pdfIn PDF document text
    • https://cdn.sqhk.co/tifobebe/io7GXiM/79982174709.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409609/normal_5fdf07dfbe9fe.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/fakuguvil/how_much_does_a_wooden_mini_table_sell_for_animal_crossing.pdfIn PDF document text
    • https://s3.amazonaws.com/kavalukato/vpn_unlimited_windows.pdfIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/high_definition_audio_bus_driver_windows_10_64_bit_amd.pdfIn PDF document text
    • https://s3.amazonaws.com/wofaxil/rugujavitinijalenomafog.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_off0000e19e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE19E 5136 bytes
SHA-256: 0352d760351561bfe90946e8ec8ee9bcf9b5e161694e6414303ff2c6a73fd3e8
font_01_sfnt_off0000f31f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31F 10100 bytes
SHA-256: 0e8502db75738321f0331725da577c7adf911f4203b1de1fd3ba280677270445