Malicious PDF — malware analysis report

Static analysis result for SHA-256 f61b099ce8071f2c…

MALICIOUS

PDF

83.6 KB Created: 2021-02-27 22:41:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 25c67818cf6c611dd00a060db5e36f86 SHA-1: d9b492e58a883492499b4b88d15ac801aeeb2cb0 SHA-256: f61b099ce8071f2c966738ffe71ef444910a365592a14356f6bba272de08b6b2
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://soxebez.ru/aws?utm_term=how+true+is+the+zodiac+movie PDF link annotation
    • http://wumomotetidofe.getenjoyment.net/15636598922.pdfIn PDF document text
    • http://lololoj.sportsontheweb.net/what_does_woe_mean_in_keto_diet.pdfIn PDF document text
    • https://cdn.sqhk.co/fezusife/iGOKoP0/kosifotumijixala.pdfIn PDF document text
    • http://saxobupazes.sportsontheweb.net/xekowirakabiboz.pdfIn PDF document text
    • http://kenugizi.getenjoyment.net/singapore_math_syllabus_kindergarten.pdfIn PDF document text
    • https://cdn.sqhk.co/zeboxuze/ha9gcij/tenumanamidujasone.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415756/normal_6031e6522b302.pdfIn PDF document text
    • https://cdn.sqhk.co/devisofage/kkqjg9X/30871929600.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/iKI7jb0/super_ninja_nickelodeon.pdfIn PDF document text
    • https://bidumijedurazi.weebly.com/uploads/1/3/1/4/131437194/pikezogokigetewafuda.pdfIn PDF document text
    • http://koxelovanalimu.getenjoyment.net/19862839879.pdfIn PDF document text
    • http://kopuvimu.scienceontheweb.net/53374353822.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mukanebesiva.atwebpages.com/mideneku.pdfIn PDF document text
    • http://rawigukegopafot.onlinewebshop.net/wiperajot.pdfIn PDF document text
    • http://kivozusemu.atwebpages.com/53044702595.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_off00010a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A19 5312 bytes
SHA-256: e84e8846446cf477a72176dc24cba984868df21dce4974b9fcd190fa849cdba9
font_01_sfnt_off00011c1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C1B 10968 bytes
SHA-256: c1a4a30d0b09ddad10a38a3a65428feac8cfeb1de2df108e134c50d258a11f25