Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ab30cb02efabeda…

MALICIOUS

PDF

72.5 KB Created: 2021-02-24 00:46:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 8884b9fdbc2bb66356f9e4dc3b4d5675 SHA-1: a8a87844c4e4f782b77214560c8b88fd4e82da93 SHA-256: 8ab30cb02efabeda70584a68be2c47ed0591ef745d0e27ba56ff415df3c6604a
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://jottigo.ru/wix?keyword=miles+city+school+board+minutes PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4445754/normal_5fca3d5d5c867.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447278/normal_5feafb8f8f4c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495399/normal_5fd2278369f74.pdfIn PDF document text
    • https://cdn.sqhk.co/vasibejovej/gelVTq3/norupoduti.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466370/normal_5fe4420a518ed.pdfIn PDF document text
    • https://cdn.sqhk.co/wisaputal/hjAwCpY/mine_mob_clicker_rpg.pdfIn PDF document text
    • https://lanokonemuke.weebly.com/uploads/1/3/5/3/135309959/2e7f21.pdfIn PDF document text
    • https://cdn.sqhk.co/vapatibu/hiegige/master_bow_super_stickman_archers_bloody_arena.pdfIn PDF document text
    • http://disconto50.info/32319732898s2i0t.pdfIn PDF document text
    • https://linulozaf.weebly.com/uploads/1/3/1/4/131437298/vuzebuz-nofiwosuveb-pisut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412413/normal_5fd04df4b76d3.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/pilazi/67356276112.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/58479286051.pdfIn PDF document text
    • https://s3.amazonaws.com/minegikukovel/safiwezonavudu.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_off0000dc60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC60 5428 bytes
SHA-256: 8921261e9ed2aca18d8a6100ce9ef27fe20ede12c34e74b404f10609ee829b4e
font_01_sfnt_off0000eeb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB9 11232 bytes
SHA-256: c23eede27c35891be2bfffc8428381efe6b7c916b72888648b1242421ac82a21