Malicious PDF — malware analysis report

Static analysis result for SHA-256 14645f14b33368c7…

MALICIOUS

PDF

78.3 KB Created: 2021-02-27 21:59:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 1bd972850e55bb8da1cdb0d620abb2d2 SHA-1: 6ba5c95a1d871e885eb631895b370f3507159a2e SHA-256: 14645f14b33368c7698b05e925f3cee8a5fb3f2be4ca76d6125abe478adf9913
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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://gimoguvi.ru/award?keyword=canon+i+sensys+mf4450+windows+10+driver PDF link annotation
    • https://cdn.sqhk.co/sunomedude/AHieVP2/i_need_to_speak_to_your_manager_meme.pdfIn PDF document text
    • https://cdn.sqhk.co/noxivudeva/JXlyigQ/stupid_zombies_3_mod_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/gfjg7ii/red_ball_4_volume_2_level_30.pdfIn PDF document text
    • https://vuwadano.weebly.com/uploads/1/3/4/3/134350870/b8fa169.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446917/normal_602b0cbdbd97a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489601/normal_600d394749f6b.pdfIn PDF document text
    • https://cdn.sqhk.co/jiluputumusi/7BnvOUj/duliwexe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483856/normal_602a1dbfc0913.pdfIn PDF document text
    • https://cdn.sqhk.co/goronikel/EA5jcgi/cyber_crime_notes_for_llb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495558/normal_60373ef32101d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449973/normal_5ff9a67d2d9ab.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/werowibovezoje/bowaxedivebarulatirarawi.pdfIn PDF document text
    • https://s3.amazonaws.com/mubefula/45547178328.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/law_of_attraction_love_relationships.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/72411918478.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_off0000eba6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBA6 5588 bytes
SHA-256: fc0a2d74bbce29e3c6944136ca6d12c4271a1fbdccaed622110ba660fa44793e
font_01_sfnt_off0000feba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEBA 14568 bytes
SHA-256: d2f513a871afc6e84801b8e5316f104ebe8ad8de4961b3a345f170482e5d0d53