Malicious PDF — malware analysis report

Static analysis result for SHA-256 08fb65b5da23af31…

MALICIOUS

PDF

68.6 KB Created: 2021-03-01 17:51:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b71968bc3653a80b673d14042cc53b13 SHA-1: b0620112b3c490c4f93184ba71ae859facaa15dc SHA-256: 08fb65b5da23af31596e96fb6b8f72b1bb8348b2a873a5d98f33501ddb5efa1a
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://vilenefex.ru/wix?keyword=taxonomy+interpreting+graphics+answers PDF link annotation
    • http://pro-konditer.com/lazizexido24z61.pdfIn PDF document text
    • http://reduslim-italia.website/sowumaxekerimuxubixafk14f0.pdfIn PDF document text
    • http://mexicotop3.xyz/amplitud_de_ejercicio_en_administracionyhxqf.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/Gmicjb5/15402459054.pdfIn PDF document text
    • https://cdn.sqhk.co/vegedusovo/hinvTBL/70721511616.pdfIn PDF document text
    • https://cdn.sqhk.co/zuvifilezaja/igr1jaQ/train_tracks_2013.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408997/normal_601280079d10b.pdfIn PDF document text
    • http://zdsshop.top/67829491405fjm7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410217/normal_6011dd942f380.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374360/normal_5fed60c54b1e2.pdfIn PDF document text
    • https://cdn.sqhk.co/rixutixim/f3ZIjjI/putumarumizupodolanavox.pdfIn PDF document text
    • https://cdn.sqhk.co/nakunadubux/geuhdij/57718361963.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/vavabi/57144282599.pdfIn PDF document text
    • https://s3.amazonaws.com/tufitijinexu/zakojufakozepizomekuxi.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/ubisoft_hungry_dragon.pdfIn PDF document text
    • https://s3.amazonaws.com/ribowexulo/miwodewidubupikumexaz.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/happy_birthday_piano_arrangement.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_off0000d049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD049 5524 bytes
SHA-256: 6479b955188636fdf6d59b03100edd7edfcbfe938bd066e4dd77626c8fc32957
font_01_sfnt_off0000e30e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE30E 10052 bytes
SHA-256: 82ba0199fcfbb67033a507c030455f3789d77445540aa8fb2a3ea3ec09480c74