Malicious PDF — malware analysis report

Static analysis result for SHA-256 0271a4fee6533f40…

MALICIOUS

PDF

72.8 KB Created: 2021-02-24 13:23:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 26e2fca7282efa83be475ab238fc0729 SHA-1: 1d67e7b52bb53d3ac7282e9a366d5334ce85a36f SHA-256: 0271a4fee6533f405dfa244dbe3e0a80b8f97fa69b2c8a5d96d0caeb17434cb1
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=luna+nueva+pdf+espa%25C3%25B1ol PDF link annotation
    • http://winoorama.space/12523500858fv2iv.pdfIn PDF document text
    • https://cdn.sqhk.co/nixenexax/RjihgFY/23819448363.pdfIn PDF document text
    • https://wurilulisewanid.weebly.com/uploads/1/3/4/7/134728532/zexulevovepasitujaf.pdfIn PDF document text
    • https://cdn.sqhk.co/rufadexu/ij0SDZZ/time_mysteries_2_the_ancient_spectres_apk_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/lhhggjj/barber_shop_cutting_capes.pdfIn PDF document text
    • http://centerverifybadge.com/facility_layout_and_location_francisb98lp.pdfIn PDF document text
    • https://newewakezodem.weebly.com/uploads/1/3/4/6/134680802/kejegevijewuritukal.pdfIn PDF document text
    • https://kezagoguz.weebly.com/uploads/1/3/4/1/134131769/9842cc.pdfIn PDF document text
    • https://givozerav.weebly.com/uploads/1/3/2/7/132710596/kilag_gufuvemifereka_mutaxajeretova_merapakokudop.pdfIn PDF document text
    • http://funiwigurogamu.iblogger.org/98233724138.pdfIn PDF document text
    • https://cdn.sqhk.co/rozesivotix/JgfEIe5/tip_top_nails_menu.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/xisakazelelinim/52546206332.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/dokon.pdfIn PDF document text
    • https://s3.amazonaws.com/bomupi/18647147555.pdfIn PDF document text
    • http://mibesajaku.epizy.com/christmas_lights_coldplay_free.pdfIn PDF document text
    • http://garafukaralefa.epizy.com/1690793809.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/94193397576.pdfIn PDF document text
    • http://kuronodufanox.epizy.com/zesuzepugatedojuwigozulul.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_off0000dd37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD37 5152 bytes
SHA-256: 9d831a70f8623d085c6b0723ca02f091392c9d27877b7827b8e8c8c24d602021
font_01_sfnt_off0000eea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEA5 11952 bytes
SHA-256: 95d1b8fe13d2a9da225113b4a4f6b3fd92304fb7c951fa3021ea089a924d036a