Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d375f87ce625f75…

MALICIOUS

PDF

79.4 KB Created: 2021-02-14 17:49:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: bbcde5857983093e7a6a00509428207d SHA-1: c7323777ddea6f89566ef57eb4f0b36145b09bac SHA-256: 2d375f87ce625f754b30e5a5b8cc0339c9228bd4f1bc068a12d3559d87012ca0
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/123?utm_term=filipino+wedding+traditions+non+religious In PDF document text
    • http://tufezoba.22web.org/einstein_analytics_bindings_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417817/normal_5fc9dfd74863c.pdfIn PDF document text
    • http://berezarivire.iblogger.org/bekala.pdfIn PDF document text
    • http://nekevofitoruzat.22web.org/difumalobabus.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sadabodavezuzi.epizy.com/carl_jung_personality_types.pdfIn PDF document text
    • http://fizenigapajawak.epizy.com/kargoz_druid_leveling_guide.pdfIn PDF document text
    • http://jinesiwi.epizy.com/93013915398.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/consignment_shop_contract_template.pdfIn PDF document text
    • http://datatoxozapi.epizy.com/catering_menu_design_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/meningitis_bacteriana_colombia.pdfIn PDF document text
    • http://perorudo.epizy.com/12360839071.pdfIn PDF document text
    • https://s3.amazonaws.com/nupotukig/france_schengen_visa_application_form_egypt.pdfIn PDF document text
    • http://kososun.epizy.com/geramopag.pdfIn PDF document text
    • http://gegawuwiru.epizy.com/xojejimerababuvo.pdfIn PDF document text
    • http://dupodege.rf.gd/togidow.pdfIn PDF document text
    • http://golofup.rf.gd/xegojajilunawukel.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/skyrim_alternate_start_mod_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/sound_booster_apk_mod.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_off0000f9fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9FE 5176 bytes
SHA-256: 0c6c6a9648b6179adc3abe44713977b2a64e0342090ff8846f4c279f181e5d0c
font_01_sfnt_off00010bbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BBB 10776 bytes
SHA-256: 944fb36a3672e1c2e56aedc5b11b9bf69d79113db2e40a8da70ae73298c35496