Malicious PDF — malware analysis report

Static analysis result for SHA-256 fecc6534535444c7…

MALICIOUS

PDF

88.6 KB Created: 2021-03-12 02:52:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 692a848afc4b7021b60c0ca9cb92cbe5 SHA-1: a80a705c3836af06e2494830fd09ceb87feed6cc SHA-256: fecc6534535444c71b39a6c2f01b6ce65339f14ff751f8516fa36358f8edbab9
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded URLs pointing to a mix of disposable and potentially malicious domains, indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://xezojetit.ru/wix?keyword=goodyear+assurance+fuel+max+review PDF link annotation
    • https://xukizawumu.weebly.com/uploads/1/3/1/3/131380236/ferigal-dewinobenegife-videdamewilewe.pdfIn PDF document text
    • https://cdn.sqhk.co/nanagajog/16hdjcf/ratification_and_the_bill_of_rights_worksheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417308/normal_5fc68845ce8ed.pdfIn PDF document text
    • https://cdn.sqhk.co/mibemofega/jhmnHjb/47074941454.pdfIn PDF document text
    • https://nevofegef.weebly.com/uploads/1/3/4/8/134851200/kimebazu.pdfIn PDF document text
    • https://cdn.sqhk.co/lobinazema/vjegejl/fomon.pdfIn PDF document text
    • https://mulomaninivoxom.weebly.com/uploads/1/3/1/4/131437045/vugevu_vizufu_wikiraxovexi_jibomaweb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416125/normal_6039e5a8cf702.pdfIn PDF document text
    • https://cdn.sqhk.co/fugutexifi/gidFHJe/dorimibitukomew.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383170/normal_5fee006aa4cea.pdfIn PDF document text
    • https://cdn.sqhk.co/sidogorego/UAOhd9A/draughtsman_meaning_in_punjabi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446782/normal_60286d4e51cf1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://14319df0-7947-4f0d-bbb3-eaa17d5eb23e.filesusr.com/ugd/c45f38_2803cc18908343e095e5b86b29aec885.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pujirageg/bridge_rectifier_ic_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/desekusoxi/how_to_make_dominos_twisted_dough_balls.pdfIn PDF document text
    • http://virirunabeso.rf.gd/punctuating_dialogue_worksheet_year_6.pdfIn PDF document text
    • http://pijularof.epizy.com/the_poison_jungle_wings_of_fire_book_13._free.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/16243082544.pdfIn PDF document text
    • https://ea64ff4c-51e6-4efc-8cc1-399682447901.filesusr.com/ugd/961f18_c491ba79417b4ec8bb5789a5c51b2c85.pdf?index=trueIn PDF document text
    • http://puligop.epizy.com/16025414054.pdfIn PDF document text
    • http://ziwezamo.epizy.com/ngk_cut_songs_masstamilan.pdfIn PDF document text
    • http://dukerorute.epizy.com/clapper_board_template.pdfIn PDF document text
    • https://ed4d48c2-14ea-47f5-a89a-b82193587323.filesusr.com/ugd/8ce377_9cd61fd12e7842648e9507048878ee7f.pdf?index=trueIn 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_off000113e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x113E5 5520 bytes
SHA-256: 3327f98a0217f2b68ca841a9a8b3b4df66a89a337b4c977d3986e0624841bb35
font_01_sfnt_off000126b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126B3 14972 bytes
SHA-256: 5f6ff787bd7346ce34c7a5833e83c17f6c8313840b1b6d3e784cd04aff2825be

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