Malicious PDF — malware analysis report

Static analysis result for SHA-256 9419a1306db6dc96…

MALICIOUS

PDF

71.9 KB Created: 2021-02-21 19:21:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 73d04beeff5265ec953c200a5efaf918 SHA-1: bdee7d1b84f055efffbafe0901258a65cc78834e SHA-256: 9419a1306db6dc96139db15759161e0bb8cda1cc85475f793a2c2f6cbf8e3fe4
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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.
  • 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.
  • 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/wix?keyword=funny+st+patrick%2527s+day+shirts In PDF document text
    • http://cuzinfo.ru/nazipalokeleboc2oxu.pdfIn PDF document text
    • http://noverst.xyz/clinical_laboratory_hematologyb2hre.pdfIn PDF document text
    • https://bovoladimuva.weebly.com/uploads/1/3/0/9/130970023/fekabe.pdfIn PDF document text
    • https://cdn.sqhk.co/guwewaxa/gici2ha/memipawimebatagefu.pdfIn PDF document text
    • http://ketosimple.online/tree_of_life_utah_desertwboma.pdfIn PDF document text
    • http://sarkife.site/sosigojelowetizemupelzmbis.pdfIn PDF document text
    • http://card2card.live/costco_pot_pie_nutritionpb4pu.pdfIn PDF document text
    • https://cdn.sqhk.co/vamapoludi/cVgfhdH/stray_cat_doors_2_stage_2_bonus.pdfIn PDF document text
    • http://uplrezina.site/adaptive_schools_strategiesn0q83.pdfIn PDF document text
    • http://mscredit.info/76231855968jip8m.pdfIn PDF document text
    • https://komomofuxuz.weebly.com/uploads/1/3/4/4/134494735/b7e443961d108ae.pdfIn PDF document text
    • http://weareanonymous.org/mudexijt66s.pdfIn PDF document text
    • http://usesoda.pro/27748141328eead.pdfIn PDF document text
    • https://jabikazisejifo.weebly.com/uploads/1/3/1/6/131606509/4108268.pdfIn PDF document text
    • http://findattime.com/87772400506508l5.pdfIn PDF document text
    • http://remontlegko.info/53786491176qlm4j.pdfIn PDF document text
    • http://bostpolamos.site/dinosaur_simulator_script_guiif4vp.pdfIn PDF document text
    • https://cdn.sqhk.co/datolabevev/9ds62ET/fubegoxeniromuribenadaxi.pdfIn PDF document text
    • http://gratoramaa.space/cancer_de_pulmon_radiologia51xzu.pdfIn PDF document text
    • http://cooldomen.space/bezebugufakazageginuxid3c9k.pdfIn PDF document text
    • http://pearhaidhr.fun/66824054560bbkrx.pdfIn PDF document text
    • http://zoomita.fun/64255217699n0myr.pdfIn PDF document text
    • https://cdn.sqhk.co/gupetipek/ljiLIjh/8729310698.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC76 5284 bytes
SHA-256: 9d93883fb08dc2c616570d05b38529b4c3f424567200d06ffc03b2d96b3ccaf0
font_01_sfnt_off0000ee78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE78 10536 bytes
SHA-256: fc84b07f64ad6332647e9f064fbdbb2263d493f520fdbca085eb4c93bfd582bc

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