Malicious PDF — malware analysis report

Static analysis result for SHA-256 34adc72bd4f9a0db…

MALICIOUS

PDF

69.6 KB Created: 2020-11-16 15:53:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: d774d63eeced5a113a3303a95262bb81 SHA-1: dbec1b2a5d5aa0209be54dee0e0f33971579b9cd SHA-256: 34adc72bd4f9a0dbb15e436360da980d3019622f924e7ff84ee8e2551e98c625
196 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
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://traffset.ru/wb?keyword=denso%20india%20annual%20report PDF link annotation
    • https://firerokuk.weebly.com/uploads/1/3/1/1/131164187/rozibeju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377380/normal_5f8f4b70a296f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365525/normal_5f871097c441a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388062/normal_5f8d4bb38da95.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389394/normal_5fa36b0f7ac49.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446773/normal_5f9de942a4d25.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452372/normal_5fabc96005480.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5f87d416790b2.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/7339347.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/befevifa/star_trek_the_next_generation_interactive_technical_manual_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/975c10f1-7108-4367-8c9e-05608b992202/wexuluboxire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/756ad1e3-7e57-45f3-8a98-962345c3a93b/download_filmes_2019_torrent.pdfIn PDF document text
    • https://s3.amazonaws.com/tosasugokod/62246427998.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_off0000d4bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4BF 4952 bytes
SHA-256: 59feff40916b8d04d66c21ed998a969f9c0308942b8de48b9728c6cbd185b1f0
font_01_sfnt_off0000e5a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A9 10720 bytes
SHA-256: b981373ab11e055a79180f2bbd403c4243e8b43daf2dfcd3334f0ab6fe679611