Malicious PDF — malware analysis report

Static analysis result for SHA-256 c59fa099b1084503…

MALICIOUS

PDF

68.9 KB Created: 2021-03-02 22:59:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e8238a252cc385ad77ca6697e07569d3 SHA-1: a9ef4eb1812ea33c6970dcf3397f6bf4d97bd4a1 SHA-256: c59fa099b10845033fe10090e117066ce185a04266899280ad110a5df14b0372
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://gimoguvi.ru/award?keyword=what+is+the+theme+of+possibility+of+evil PDF link annotation
    • https://xitarowax.weebly.com/uploads/1/3/2/6/132681505/fogemekuwot.pdfIn PDF document text
    • http://kino-vezde.ru/when_did_christianity_began_in_europek1puf.pdfIn PDF document text
    • http://normaa-id.com/what_is_one_word_answers_calledj2778.pdfIn PDF document text
    • https://xuvakaxatal.weebly.com/uploads/1/3/1/0/131070170/ravoruwofoni-fovara-zopofo-danejubikeluzoj.pdfIn PDF document text
    • https://xumotisububilup.weebly.com/uploads/1/3/4/5/134591263/niwunikakus_govew_xamuma_lusisameluva.pdfIn PDF document text
    • https://cdn.sqhk.co/ragonujip/JgjGibe/bomotuw.pdfIn PDF document text
    • https://cdn.sqhk.co/kitaparek/9UjafnY/lowor.pdfIn PDF document text
    • https://jugifipunud.weebly.com/uploads/1/3/1/4/131437595/bumofezedol.pdfIn PDF document text
    • http://microbestdigitalmeter.xyz/10048302653lraa7.pdfIn PDF document text
    • https://guxumexowe.weebly.com/uploads/1/3/3/9/133999944/5626758.pdfIn PDF document text
    • https://cdn.sqhk.co/tuzevawu/Zii4bms/keguv.pdfIn PDF document text
    • https://jubipolofolexi.weebly.com/uploads/1/3/2/3/132302872/tinadivujog.pdfIn PDF document text
    • http://allostar.buzz/manual_de_organizacion_y_funcionamiento_de_escuelas_secundarias_tecnicasogccb.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/jozaponi/6482558623.pdfIn PDF document text
    • https://s3.amazonaws.com/fixararololu/xonomipolotepalulix.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/how_to_unlock_magic_chef_oven.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_off0000d2a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2A6 5360 bytes
SHA-256: dc1dcb6e1875beab2fb52d859c9b1d3dd2042a61db742e8f3b13528565a5af15
font_01_sfnt_off0000e4d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D5 9928 bytes
SHA-256: bd41d87e25abd4a16f9fa7f3351245f0577c54cb71069d6e449ed82764535900