Malicious PDF — malware analysis report

Static analysis result for SHA-256 93bc0d5b92227152…

MALICIOUS

PDF

73.0 KB Created: 2021-03-07 06:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b5107a79d95b075babfcd28397c448cc SHA-1: b83e3df38f28e2da1d2fd73de510059cda451b92 SHA-256: 93bc0d5b9222715288168ddf47bede4b5820a63a84b636327b0aa6be434737e3
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://fokemale.ru/wix?keyword=environmental+engineering+pdf PDF link annotation
    • https://cdn.sqhk.co/gesokusa/Hieifgi/isoland_2_ashes_of_time_literary_analysis.pdfIn PDF document text
    • https://cdn.sqhk.co/gasubapo/uhiRIhe/juegos_de_london_rex_y8.pdfIn PDF document text
    • https://cdn.sqhk.co/kalusoxat/2Yhj0hc/brackets_dashes_commas_worksheet.pdfIn PDF document text
    • http://reduslim-ordina.site/magnus_chase_and_the_gods_of_asgard_summaryhv9k2.pdfIn PDF document text
    • http://cosmeteca.com/total_gym_xls_vs_fitpknu6.pdfIn PDF document text
    • http://coins24h.com/bazabalatutogekideziresebat71h.pdfIn PDF document text
    • http://tradebot.space/contractions_with_not_worksheet_2nd_gradegjzld.pdfIn PDF document text
    • https://fuviwezajoz.weebly.com/uploads/1/3/1/3/131379384/3678164.pdfIn PDF document text
    • https://salizobujexi.weebly.com/uploads/1/3/5/3/135325558/9702736.pdfIn PDF document text
    • https://xujikipige.weebly.com/uploads/1/3/1/3/131379844/duziwopafa.pdfIn PDF document text
    • http://salea.site/metro_exodus_xbox_one_x_size9e10g.pdfIn PDF document text
    • http://rerubin.space/7120096412mj2zm.pdfIn PDF document text
    • https://cdn.sqhk.co/torazanopuni/ijhdgfH/hachi_a_dog_s_tale_movie_download.pdfIn PDF document text
    • http://andyhong.blog/jalorojujabtm554.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wajalapivibobi.epizy.com/kejikoliwibepora.pdfIn PDF document text
    • http://dotemewu.epizy.com/75999463492.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_off0000e01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01E 5200 bytes
SHA-256: 8a598a8a7a0ba092481f9253a18a026700a9b0c872c653436dea9da520cd05e1
font_01_sfnt_off0000f1c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C6 10788 bytes
SHA-256: aba3ea14d9f93fb94002b3964a38d163856ec41af038310ddc7a3b9ee63267c2