Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7de9e68f91a92a…

MALICIOUS

PDF

66.0 KB Created: 2021-03-03 09:26:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: bb6c28f7af35ba50d21d6713afa2900b SHA-1: 2683aab97bef83f392bfd5925422f6c16ed734b9 SHA-256: fe7de9e68f91a92a9ed7c252c13e8114b2dc84ada6dcf7c0dc53bcac4824b6bb
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://pelibifir.ru/award?keyword=libro+de+ciencias+fisica+2+secundaria+infinita PDF link annotation
    • http://sozimaxetupow.mywebcommunity.org/tomitik.pdfIn PDF document text
    • http://support-copyrighthelpservice-about.com/what_is_doordash_stock_worthdqmm8.pdfIn PDF document text
    • http://gimakelodikovij.iblogger.org/app_bancomer_movil_apk.pdfIn PDF document text
    • http://folugomobok.getenjoyment.net/one_of_us_is_lying_movie_chase_stokes.pdfIn PDF document text
    • http://dodajavux.scienceontheweb.net/37637981235.pdfIn PDF document text
    • http://tur8osale.site/kilcunda_fishing_report_2018ktbb6.pdfIn PDF document text
    • https://cdn.sqhk.co/kukugejekibi/bGgfge2/35025404164.pdfIn PDF document text
    • http://tamakar.xyz/american_racing_wheels_and_tires_packages50ebc.pdfIn PDF document text
    • https://sozazoje.weebly.com/uploads/1/3/1/1/131164180/e43185.pdfIn PDF document text
    • http://lazadacostumercenter.com/fasuzebw7vw5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tomoguwotikumux.rf.gd/borges_y_yo_preguntas_y_respuestas.pdfIn PDF document text
    • http://rafazusasune.rf.gd/account_balance_sheet_cash.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_off0000c6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6AC 5196 bytes
SHA-256: 1a4ccd37b3a1d6bfebc771ccc959fbd8f5c10c320dcc91500d0cc16e5661a369
font_01_sfnt_off0000d867.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD867 10396 bytes
SHA-256: af4d2b5a9212e37cdd04ba8bd8663fc333a2322c23c556cf476ce4e19aa86e8d