Malicious PDF — malware analysis report

Static analysis result for SHA-256 e37cb6ca0cff092b…

MALICIOUS

PDF

60.7 KB Created: 2021-02-11 16:53:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 49ac95cd5bad3ac5c536951b790fbe74 SHA-1: 894f4869a02cb4dd58572131e956d84f0f4f8002 SHA-256: e37cb6ca0cff092b0f31356450f199e5a14e70ef43e578602f0c6e09214ebdfa
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/123?utm_term=bottomless+lakes+state+park+hiking+trails PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4446770/normal_5fc575219f02e.pdfIn PDF document text
    • http://top-agent.ru/937413941239eb7b.pdfIn PDF document text
    • http://poverkavoda.website/85090704579o46oo.pdfIn PDF document text
    • https://jufozawuvinuxak.weebly.com/uploads/1/3/5/3/135326647/5961674.pdfIn PDF document text
    • https://cdn.sqhk.co/sufokorume/gfifBXA/just_draw_game_level_33.pdfIn PDF document text
    • http://sun-italy.space/41164230071zeck2.pdfIn PDF document text
    • https://tovakuroxi.weebly.com/uploads/1/3/1/1/131164121/4868769.pdfIn PDF document text
    • https://lokurosafo.weebly.com/uploads/1/3/4/4/134479987/031c52.pdfIn PDF document text
    • https://cdn.sqhk.co/saseponirifa/jraibji/77313958813.pdfIn PDF document text
    • http://pijakonojimuw.iblogger.org/81782558546.pdfIn PDF document text
    • http://muzojumovove.iblogger.org/vodop.pdfIn PDF document text
    • https://rajoligegade.weebly.com/uploads/1/3/4/5/134504333/5f9a4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pagosunizuboroz.epizy.com/46814974828.pdfIn PDF document text
    • http://gadoxijumulop.epizy.com/perforated_metal_sheet_for_sale_near_me.pdfIn PDF document text
    • http://numumodi.epizy.com/lelufadubafipajotigimuw.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_off0000b0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB0BD 5344 bytes
SHA-256: 03f8eb216940b28f57a8a2f859a592fb87dbe9b21b7b0183a178f47fddd54cfe
font_01_sfnt_off0000c2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2BE 9808 bytes
SHA-256: 8d2cc71bb272fd0287afc3e679af0dbfdf7055d94ade33b9913f67504cd090be