Malicious PDF — malware analysis report

Static analysis result for SHA-256 44fceec0ff4ede25…

MALICIOUS

PDF

68.4 KB Created: 2021-02-16 22:19:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b758b09ac95acaa5026399f6254ff131 SHA-1: a60cdef8847ac096a022bfd2e992bbdc8abe9a3c SHA-256: 44fceec0ff4ede2554ef8a27509988e03432baca5c5a54046940c6c1d3c5f90c
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://baarspo.ru/wix?keyword=step+2+picnic+table+assembly PDF link annotation
    • http://ketotreno.buzz/turnitin_free_download_full_versionfbha8.pdfIn PDF document text
    • http://lakshmi-store.ru/cambridge_advanced_learner_dictionary_4th_edition_software_free_downloadldbnq.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412778/normal_5feda2975ab74.pdfIn PDF document text
    • https://cdn.sqhk.co/xoberuweri/hVdevii/zowinatebegir.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466161/normal_601153f4d6392.pdfIn PDF document text
    • http://igcopyrightforhelps.com/aprender_como_aprender_rosa_maria_ga39gr9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420764/normal_5feb08b4b6ec0.pdfIn PDF document text
    • http://wowit.pro/sculpture_falls_trailjls2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407998/normal_5fea0694783bc.pdfIn PDF document text
    • http://rostov-mobile-doctor.ru/first_strike_roscoe_paintball_revolver_cal._50fqqrj.pdfIn PDF document text
    • https://cdn.sqhk.co/kanemili/n5zCTjb/ratujeme.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/modorotimaze.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/alibaba_stock_market_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/verudelukowesozesuzevog.pdfIn PDF document text
    • https://s3.amazonaws.com/legipalofi/d365_management_reporter_setup.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_off0000cec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEC9 5460 bytes
SHA-256: bae9a393a2fcae90d88ecf06ad27f99c7c48d0982b702358dc5e8c624dd4c801
font_01_sfnt_off0000e152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE152 10344 bytes
SHA-256: fa94b3728a4f421f0ee576f8c3c6c3ff7a1bd7e196bea5203ccf951f08468c99