Malicious PDF — malware analysis report

Static analysis result for SHA-256 9182b80c9805e1c0…

MALICIOUS

PDF

73.1 KB Created: 2021-03-02 21:30:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e6b5cf664af88d49173330e59182fb3c SHA-1: 70b0c0155eadaf5329892d7c0b28cd03838dc984 SHA-256: 9182b80c9805e1c02a92d89fe4e47cc53f0971eb21fbdad853f36740d099a261
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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/award?keyword=is+fantastic+beasts+available+on+amazon+prime PDF link annotation
    • https://cdn.sqhk.co/dixufeja/ghbN1ib/kurewa.pdfIn PDF document text
    • http://guvinesusavilo.iblogger.org/hazardous_waste_report_management_method_code_h141.pdfIn PDF document text
    • http://help-copyrightviolationhelpcenter.com/todo_list_react_native_hooks04dbj.pdfIn PDF document text
    • https://kukonite.weebly.com/uploads/1/3/4/6/134611202/lawafa-xixuduvuda-wafojuxij-gapilerajewusu.pdfIn PDF document text
    • https://nupuwuzom.weebly.com/uploads/1/3/1/4/131438231/1e81a3ce9.pdfIn PDF document text
    • https://cdn.sqhk.co/loxowopiv/Y2Pjb3c/rofiju.pdfIn PDF document text
    • https://cdn.sqhk.co/fafujedajir/fmwjhji/34386534090.pdfIn PDF document text
    • http://microbladingeyebrowsdallastx.com/immunization_chart4ode2.pdfIn PDF document text
    • http://flowerport.store/ambulance_uniform_nhstyfak.pdfIn PDF document text
    • https://cdn.sqhk.co/xafeperale/yo2ghjc/questionnaire_for_ice_cream_shop.pdfIn PDF document text
    • https://cdn.sqhk.co/bovokolel/YIjicr8/500_words_bronze_winners_2019.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://divejekojo.epizy.com/jopugime.pdfIn PDF document text
    • http://pobiludorigogok.epizy.com/damipebezegojugowafura.pdfIn PDF document text
    • http://gezujoju.epizy.com/kuvexiwofedifovasavasata.pdfIn PDF document text
    • http://pinogizege.rf.gd/xomugopudebaloxanol.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_off0000e23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE23F 5348 bytes
SHA-256: fbc96cb554c8e307c31f0816a2f7e95b0e5cd05d6854821ba3e7a3b25db69f3b
font_01_sfnt_off0000f46c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF46C 10080 bytes
SHA-256: 91ab238aed4ff94cb721d67dcd35eba60eac971686239a53743d957008a8787c