Malicious PDF — malware analysis report

Static analysis result for SHA-256 4bb921fbd68a8361…

MALICIOUS

PDF

65.0 KB Created: 2021-02-18 08:38:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c2af1d665cc975788274a4e082ff7b4e SHA-1: 6843b9bbe8e18dce8cb623b979188a8b244e6186 SHA-256: 4bb921fbd68a836132be66cb95f93065ecbc7b50930e70ceb65eb03405fdfadd
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://druttle.ru/wix?keyword=rockport+fishing+report+solunar+tables PDF link annotation
    • http://jogemijafiw.22web.org/video_bioskop_indonesia_full_movie.pdfIn PDF document text
    • https://cdn.sqhk.co/xisiwuba/hg7x6fc/battleground_survival_mod_apk_offline.pdfIn PDF document text
    • https://cdn.sqhk.co/pebekaja/GYgeihi/video_fake_call_simulation_for_ice_cream_manufacturing.pdfIn PDF document text
    • https://ragurinibobuma.weebly.com/uploads/1/3/3/9/133986244/1408266.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/xufujofaleki/revenue_canada_forms_t2125.pdfIn PDF document text
    • https://s3.amazonaws.com/gotijejaj/46676742092.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/50761932072.pdfIn PDF document text
    • http://bideliv.rf.gd/51840130511.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/57142866061.pdfIn PDF document text
    • https://s3.amazonaws.com/mozedijiz/engine_turned_aluminium_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/fawelelegaxizilip.pdfIn PDF document text
    • http://gorefoverotiw.epizy.com/export_excel_worksheet_to_vba.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/pals_algorithm_2018_aha.pdfIn PDF document text
    • https://s3.amazonaws.com/sowirutelevolur/tudositepavafogubutodetu.pdfIn PDF document text
    • https://s3.amazonaws.com/bugutaj/magoxoxipuroligikip.pdfIn PDF document text
    • https://s3.amazonaws.com/baposivarabuj/98129647249.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/cetis_57_formato_de_reinscripcion.pdfIn PDF document text
    • http://kizuwopo.epizy.com/how_to_learn_interior_designing.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_off0000c157.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC157 5488 bytes
SHA-256: a7e98d90311bf26d06a7a534dfb83839088d4cce1760020797d41102fae4f795
font_01_sfnt_off0000d40a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD40A 10200 bytes
SHA-256: e6d1dd5a74b0b53db687308cb9dd180bd0b616a7d24af7a796066526db39f4ef

Open this report in the interactive analyzer, or submit your own file for analysis.