Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ab31bac2c94e8dc…

MALICIOUS

PDF

79.7 KB Created: 2021-02-23 15:09:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 190e74787dbba97f5221c5c78cdf3da2 SHA-1: 3a60a752cfb7e41bb8913b14b8547e12ee2788d7 SHA-256: 2ab31bac2c94e8dcd60d5777ab6817bf08ad6162eeb64f1e07ba0f5b86ff6504
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://baarspo.ru/123?utm_term=canon+eos+350d+rebel+xt+price PDF link annotation
    • https://cdn.sqhk.co/tamaladafa/lJvgh2I/waterful_ring_toss_history.pdfIn PDF document text
    • https://cdn.sqhk.co/nefakovuwot/Usjabdh/zesakutugesanu.pdfIn PDF document text
    • http://prostotit.site/chocolatier_trogneux_lille3fjnd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380531/normal_600be541a789e.pdfIn PDF document text
    • http://rubyshup.space/vipomalzg9p0.pdfIn PDF document text
    • http://ptmonline.ru/385042670112lhxy.pdfIn PDF document text
    • http://jegexovavof.iblogger.org/amscope_microscope_camera_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472503/normal_6008409706178.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/tujeviwakirawu/android_studio_vector_asset_error.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/apple_music_songs_at_once.pdfIn PDF document text
    • https://s3.amazonaws.com/miwolezedubujoz/dedalijawepoxikifivulun.pdfIn PDF document text
    • http://tuzagexesowojoj.epizy.com/beady_eye_album_free.pdfIn PDF document text
    • http://gelanuvefod.epizy.com/improper_fractions_worksheet_year_6.pdfIn PDF document text
    • https://s3.amazonaws.com/fotepopunaj/kaththi_theme_music_ringtone_masstamilan.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/gekavukokotusatujofixag.pdfIn PDF document text
    • http://bafimilatape.epizy.com/94818357382.pdfIn PDF document text
    • https://s3.amazonaws.com/xoxaneral/bhavesh_joshi_superhero_full_movie_bluray.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/jefulofiwozedetevobo.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_off0000f7b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7B6 5608 bytes
SHA-256: c6c9da626957c651be64e6d68090a5b876b1ff66851f226188f56fd991da01c7
font_01_sfnt_off00010acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ACF 11412 bytes
SHA-256: 5f6e03165f60c557d8b4720b3a931737e685f2a34091d3b098c45150786771b0