Malicious PDF — malware analysis report

Static analysis result for SHA-256 066167da80394fad…

MALICIOUS

PDF

59.6 KB Created: 2020-12-24 02:55:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4dcf699c7d766821d864f756f53f6e7e SHA-1: d5481e84d0e4e97e535ce32dd5a675f71b295d2c SHA-256: 066167da80394fad2c2132d9b610cd61931b4a883d9e50b5c8bc735320900199
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffi.ru/123?utm_term=pltw+de+1.1+5+answer+key PDF link annotation
    • https://cdn.sqhk.co/bufutoje/fgVahcV/bubilibenatirazisoregusu.pdfIn PDF document text
    • https://cdn.sqhk.co/kapidibewomu/bhdSrhf/gaduwuxaki.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366377/normal_5f870e9898f04.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/xalexojaxipud/cg_song_video_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/roketojovopijep.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16f66c25-94ed-48a7-a350-0f535ef45bbc/87283632521.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/430b6074-3907-494c-bb74-50463b5ec11f/zomedijizenuz.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/asamardhuni_jeeva_yatra_gopichand.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1fda26a6-493a-4383-8f9c-5f915b236450/golajimewuguguwed.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/prince_of_princess_game.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/bade_bhai_sahab_class_10.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_off0000addd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADDD 5284 bytes
SHA-256: 62a4442ec68c6bafb2a784a5aa4fafca5ae87b75c8bc1a7cbe9a9069411a446a
font_01_sfnt_off0000c00a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC00A 9884 bytes
SHA-256: 9763491d44d9f7674276d0e23dd9a30e0ea1460610e4b48aab9108cec694e72e

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