Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d467ec825f290b0…

MALICIOUS

PDF

76.7 KB Created: 2021-03-06 05:18:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d2734c8950ccd5ef8f1eb5bd380c3acd SHA-1: 54fb9754b9fc0dab5cee46f59924e05e9f719c80 SHA-256: 3d467ec825f290b09220ee591fcdd265037b73d6c8f126869f611536ecd6e0a6
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/123?utm_term=how+much+is+2016+toyota+corolla+in+nigeria PDF link annotation
    • https://nimimetifav.weebly.com/uploads/1/3/2/8/132814674/temaxegisavu.pdfIn PDF document text
    • https://bosamekuxukis.weebly.com/uploads/1/3/4/6/134672370/supisezepivajeno.pdfIn PDF document text
    • http://femusawar.iblogger.org/54210641797.pdfIn PDF document text
    • https://lamegebepezaris.weebly.com/uploads/1/3/1/4/131438642/vepavisunazilenobize.pdfIn PDF document text
    • http://jerubapuruzol.iblogger.org/ditipijasatekurotugages.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/lixuduwonifa/the_beginner_s_guide_game_review.pdfIn PDF document text
    • https://200c4c3d-185b-4246-b99f-f40cd7065c99.filesusr.com/ugd/3ed902_3246dabb8a334ca9bf894bced9847445.pdf?index=trueIn PDF document text
    • http://zoxokukazo.epizy.com/bollyshare_punjabi_movies_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/rebesudanolo/jupikil.pdfIn PDF document text
    • https://s3.amazonaws.com/bezegoluzose/samarasimha_reddy_songs_free_naa_songs.pdfIn PDF document text
    • http://lokujafeb.rf.gd/63305222276.pdfIn PDF document text
    • https://86146b48-cf95-488a-b5a0-22832f4589a6.filesusr.com/ugd/3b4eee_d528d9fa69474d2f8da6207145a7371b.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/polojuliragam/black_sheep_affair_full_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/musokejixami/83522132910.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/gokaxudesirabukun.pdfIn PDF document text
    • https://s3.amazonaws.com/zarusegibitumet/guided_path_foundation.pdfIn PDF document text
    • http://bujugigebur.epizy.com/project_tracking_tools_jira.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/irregular_verbs_worksheet_4th_grade.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_off0000eeeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEEB 5848 bytes
SHA-256: c24594f88f00fceafacc9a82de0f4dab5dfd77514222f69b44782c22d71def69
font_01_sfnt_off000102c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102C9 10196 bytes
SHA-256: 308ab2fff8c9d46378073a8d0b0035033b5f85a8fab350bbff44cf798c677e48

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