Malicious PDF — malware analysis report

Static analysis result for SHA-256 aeed3a7ea52e4b74…

MALICIOUS

PDF

71.9 KB Created: 2021-02-11 15:16:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d7e40b26f4b12fdfe03267b0041a02b5 SHA-1: 4e96aabe762a67d2170713d6bf921924f1de2814 SHA-256: aeed3a7ea52e4b749ffcbb076d2d9259e62c8bcc10212b3249d587f7e711eb7a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not 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.
  • 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/wix?keyword=square+d+9013+fsg+2+manuale+italiano PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420775/normal_601a1d1d6340e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482869/normal_5fcc0c3f3edc7.pdfIn PDF document text
    • http://cenderaoriginator.com/dofadubokoku0pyf1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475194/normal_601b0292783ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490515/normal_5fd9b7118819c.pdfIn PDF document text
    • http://privateguardingserviceagainstdanger.site/herbal_plants_in_tamilo2j0k.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391634/normal_5ffbb4ab20ab4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452863/normal_5fda831097f95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370269/normal_601d8d4d9f9f6.pdfIn PDF document text
    • http://kixesisero.22web.org/pasalaforamuwopud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://datatoxozapi.epizy.com/jeseworotupefove.pdfIn PDF document text
    • http://temomuduzuba.epizy.com/manualidades_con_papel_diario_paso_a_paso.pdfIn PDF document text
    • http://kisidop.rf.gd/wemazutikotaja.pdfIn PDF document text
    • http://balesalefune.epizy.com/international_wire_instructions_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fedure/skype_for_business_2019_free.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/after_effects_particles_plugins_free.pdfIn PDF document text
    • https://s3.amazonaws.com/resabomibogodaw/varugojusegadunulu.pdfIn PDF document text
    • https://s3.amazonaws.com/gowupuzokowuxes/85188885122.pdfIn PDF document text
    • https://s3.amazonaws.com/daxemo/23069390257.pdfIn PDF document text
    • http://poxipepeti.epizy.com/peniviti_kaala_bhairava_song.pdfIn PDF document text
    • http://jowuwivipi.rf.gd/chikku_bukku_railu_song_masstamilan.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_off0000da92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA92 6104 bytes
SHA-256: 09914869d22791e9de486cb6029df5978311ae9aa543980a15df4db79c74b5c8
font_01_sfnt_off0000ef36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF36 10244 bytes
SHA-256: 6c1fde763baac84c74ff67da31a94ca38729cc0d7db520f6fe083fa8486bd599