Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d4292d882169627…

MALICIOUS

PDF

72.3 KB Created: 2021-02-20 10:39:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 0d1f90e77047f12b5cd776488dacc39f SHA-1: c016da0fb10aa72ef9090457ee537575f6f8b12e SHA-256: 6d4292d882169627b5d4b5d6b28be7c93d39a8a8e3b06f4f4393a1354948c895
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://maypoin.ru/123?utm_term=numerical+recipes+pdf+fortran PDF link annotation
    • https://cdn.sqhk.co/mofokamibe/3hiWM1J/62229880757.pdfIn PDF document text
    • http://ledabojuvogo.22web.org/atomic_physics_short_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/janezewufaj/jejjOgf/fupekawunoxamovo.pdfIn PDF document text
    • https://cdn.sqhk.co/sizozizaj/f3iepjc/trails_system_iowa_city.pdfIn PDF document text
    • https://cdn.sqhk.co/tefozakozup/ia4hbGj/21909544865.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385647/normal_5fd330582fbd5.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/WWBgfif/ludo_king_install_app.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/wexoteluwag/22548713585.pdfIn PDF document text
    • http://renizovakosa.epizy.com/nusuvivixegotabekega.pdfIn PDF document text
    • http://jebefufodapiwi.epizy.com/brooks_guide_rails.pdfIn PDF document text
    • http://susegemosesipul.epizy.com/bibliography_worksheets_for_middle_school.pdfIn PDF document text
    • http://diwuzenebixo.epizy.com/key_west_margaritaville_frozen_drink_maker_reviews.pdfIn PDF document text
    • http://fanobibefo.rf.gd/simple_salary_slip_template_in_excel.pdfIn PDF document text
    • http://filutirulone.epizy.com/how_to_troubleshoot_a_no_power_issue_on_your_dell_desktop.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/diabetes_in_pregnancy_guidelines_ada.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_off0000de66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE66 5268 bytes
SHA-256: 821d23f1cdf8420bf60739f8595ad5d3d30fefe3094c7f0ab5982ff341c2f03c
font_01_sfnt_off0000f03c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF03C 10624 bytes
SHA-256: 6b0f44f0a10576761a70400c4a1d9d5bbf1ea73d5cad17b29aca68ebcc21382d