Malicious PDF — malware analysis report

Static analysis result for SHA-256 10eb46ca0a3c5539…

MALICIOUS

PDF

72.3 KB Created: 2021-03-05 02:29:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: e98165d5df641f3cdbca6f5794949347 SHA-1: 06cb71ebd022ec06f9ed24dc42275e9d64af07c1 SHA-256: 10eb46ca0a3c553912f0279259847424456bf17f84c7e6636343c805d9fc727a
126 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
  • 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://kuzutuzo.ru/123?utm_term=resumen+por+capitulos+de+la+familia+de+pascual+duarte PDF link annotation
    • https://cdn.sqhk.co/mevexobuzur/iiijhb9/12060269261.pdfIn PDF document text
    • https://natitapa.weebly.com/uploads/1/3/1/3/131379406/1782526af3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465924/normal_6025e5a34e253.pdfIn PDF document text
    • https://cdn.sqhk.co/livaxipovage/jd80hh2/35586528019.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/gfMzcZ5/72602135757.pdfIn PDF document text
    • http://xidasetetobuge.scienceontheweb.net/law_of_sines_and_cosines_practice_worksheet_answers.pdfIn PDF document text
    • https://filafibiwi.weebly.com/uploads/1/3/4/3/134316544/153f517af2.pdfIn PDF document text
    • https://kixaxadamakike.weebly.com/uploads/1/3/0/7/130775249/11357eb.pdfIn PDF document text
    • http://makebugobiwuka.mypressonline.com/the_twelfth_planet_audiobook.pdfIn PDF document text
    • https://xateboduf.weebly.com/uploads/1/3/1/4/131483383/d3a1c5b4f7fe.pdfIn PDF document text
    • https://cdn.sqhk.co/gelowidabik/dfcfPhd/slice_your_pie_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/kelanadu/cjeghhK/siwitojelisi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477886/normal_600a7a0e744bf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a50dbba5-e4fd-40cc-afa9-a45495a5accf.filesusr.com/ugd/7f929b_f5aebad8abdd4c339acc293b5ea1e49d.pdf?index=trueIn PDF document text
    • https://8d684a1e-4078-49cd-b336-05adf09473b6.filesusr.com/ugd/2b25e8_6f7a3b665136441795c8c15115f24168.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_off0000dcdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDC 5308 bytes
SHA-256: c8c1a355d98a58791b90b6729cc7e3451f85eaddafa8218049bea03f05142f64
font_01_sfnt_off0000eed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEED5 10892 bytes
SHA-256: ed33644c951d26e549616f39d186e53f183e2a1a807fbe727a9a4e062f93a85e