Malicious PDF — malware analysis report

Static analysis result for SHA-256 7095e859eae8a443…

MALICIOUS

PDF

71.4 KB Created: 2021-03-03 23:17:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: df175fa268eb23c1253e9b871763d638 SHA-1: f5c32550aa59a43734b7a989c7625e67c77d76c0 SHA-256: 7095e859eae8a443a62d2eba343075f1fb6fbbf6113a0ea60a2c8d4e164ba5c1
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://yafferge.ru/award?keyword=biorad+mini+protean+tgx+stain+free+gels In PDF document text
    • https://static.s123-cdn-static.com/uploads/4450724/normal_5fc83568e7640.pdfIn PDF document text
    • http://gijebuk.iblogger.org/gufozujeposefe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477162/normal_603ef95f010d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369907/normal_5fc65cd74c925.pdfIn PDF document text
    • http://zaduzoronogikex.22web.org/36403232660.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456119/normal_6028ead601727.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/vukujidor/lipolusizofelunurawobum.pdfIn PDF document text
    • http://totexamivemasal.epizy.com/polaris_iq900-rs_aqualink_upgrade_kit_rs_systems.pdfIn PDF document text
    • https://s3.amazonaws.com/patotale/traffic_rider_hack_apk_revdl.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/86514912670.pdfIn PDF document text
    • http://xilibosukotijob.epizy.com/batosama.pdfIn PDF document text
    • http://bofoputuweja.rf.gd/carrom_games_free_for_mobile.pdfIn PDF document text
    • http://lujapekadedi.epizy.com/world_map_printable_free_black_and_white.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/may_2018_sat_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/bukunmi_oluwasina_pictures.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/woxazelikijojikege.pdfIn PDF document text
    • http://nedosufibiraje.epizy.com/d_and_d_auto_body.pdfIn PDF document text
    • http://rolizixi.rf.gd/free_template_website_responsive_admin.pdfIn PDF document text
    • http://bisetazixu.epizy.com/what_does_service_esc_mean_on_2010_chevy_malibu.pdfIn PDF document text
    • https://s3.amazonaws.com/gedesisumi/buddynice_7k_appreciation_mix.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/kekosemoluduzadanivupe.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_off0000dc4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC4D 5480 bytes
SHA-256: c8bfeca07593491696f1b09405b4ea5a15e0f260643b09f02eb210dc7fb13461
font_01_sfnt_off0000eee3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE3 9816 bytes
SHA-256: 95d2103e2694e950258a6d76be3f4eba33b1409230285e232906dc627ecac5e5

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