Malicious PDF — malware analysis report

Static analysis result for SHA-256 4dc6ffb5e6bf761e…

MALICIOUS

PDF

70.2 KB Created: 2021-03-01 10:25:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e8ff89e2f4aa461b0fb7155531b06a7e SHA-1: ef945f3657db76fb0199c54ca8312956d23d951f SHA-256: 4dc6ffb5e6bf761e989233346ff7891f1df9a9ac1b043f59bebd78cec55fa655
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://druttle.ru/wix?keyword=cuisinart+ice-30bc+manual PDF link annotation
    • https://rorezumi.weebly.com/uploads/1/3/4/5/134591247/790fcf0435ee9.pdfIn PDF document text
    • https://rupibofog.weebly.com/uploads/1/3/1/6/131607232/jagepadireses-radolemifi.pdfIn PDF document text
    • http://nowtorrentz.com/what_to_write_to_your_godchilditqjg.pdfIn PDF document text
    • http://antonio-ita.space/72937708670v2tre.pdfIn PDF document text
    • https://fitokuzigijot.weebly.com/uploads/1/3/4/6/134681543/c582299a9faf8f.pdfIn PDF document text
    • http://helpverifybadges.com/jusajoloxumulobukasupipawqkp5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386851/normal_6000227c317c8.pdfIn PDF document text
    • http://fejekadiwoxobiz.getenjoyment.net/jabamulinuxafexe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384463/normal_5fe95079504ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408582/normal_5fe23ac8152c9.pdfIn PDF document text
    • https://pipabujul.weebly.com/uploads/1/3/2/6/132680817/bubarezoxesinuw-fixivo-sevorasufaxi-kanumamo.pdfIn PDF document text
    • http://fanisore.sportsontheweb.net/52015899908.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460070/normal_5ff967595a22d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kedisijusa.onlinewebshop.net/microsoft_projects_2019_download.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_off0000d565.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD565 5328 bytes
SHA-256: 9363f2e235572b64bf797329efab56ffc2b18aece489b482368f5089c63fe5d2
font_01_sfnt_off0000e765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE765 10396 bytes
SHA-256: 0d1ab76169b7c8e08d28993d27d2a511e14939476e99e8af7810e3c3cf313471