Malicious PDF — malware analysis report

Static analysis result for SHA-256 46de014670e1c51a…

MALICIOUS

PDF

73.2 KB Created: 2020-12-31 01:23:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 1949a113b81635d86f58d20958e96e3d SHA-1: 2e87436ff1db9554080a259a18de0165579b60bf SHA-256: 46de014670e1c51aceb8d84954d894a59ec97d349935977b6ead11a01b54d716
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating it is a phishing lure, specifically designed to trick users into downloading cracked software. The embedded URL points to a redirector that likely serves the malicious payload. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

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
  • 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://traffnew.ru/strik?utm_term=hide+me+vpn+apk+crack+download PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452173/normal_5feaed549a1c5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387825/normal_5feb0309c6d12.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485149/normal_5fdd85aa63894.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447271/normal_5fa583afb51d5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387218/normal_5f9d6a19d6ad9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413712/normal_5fe536b1413e1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446152/normal_5fbae7bba18c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390680/normal_5fb57ec6e6119.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448549/normal_5f9fb785c793f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379720/normal_5f8fe0c899879.pdfIn PDF document text
    • https://cdn.sqhk.co/xulawajikigi/1hejvSl/50574699972.pdfIn PDF document text
    • https://cdn.sqhk.co/warugariluxe/hhjhih7/management_fundamentals_robert_lussier.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/77024a2c-0f08-4722-8b95-bc1c41c1d5ec/cheat_codes_for_minecraft_bedrock_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d5a3727c-459f-49a8-8edb-8e00d70d52ff/danopo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2fd59e3-870d-45a5-a2e8-0ed4d1b64964/mejeje.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

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e18f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE18F 5220 bytes
SHA-256: 586a9edf71f654dfc08430a5ba88bbe07b355d0524d6c2b76ae4f5db01ac8672
font_01_sfnt_off0000f34a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF34A 10716 bytes
SHA-256: 2659e0ebb6fb1c4282a0eb8b1b3cdd68671967f68e9c12c6a270979a1256ee48

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