Malicious PDF — malware analysis report

Static analysis result for SHA-256 e201cb6a34dd7069…

MALICIOUS

PDF

66.7 KB Created: 2020-12-04 04:28:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: fc324095570336f4ef2527f2968ca177 SHA-1: 4ed34acbc6716973b7199d0286dd3fffbc6a361a SHA-256: e201cb6a34dd7069c531a168eee947e05b550ef04f7b181538c90a2a2b1770fa
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that leads to a suspicious domain, likely intended to deliver a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, appears to reference the URL's theme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffnew.ru/strik?utm_term=5+conflict+management+styles+animals PDF link annotation
    • https://fukikabigo.weebly.com/uploads/1/3/4/4/134457586/sigigapuvoles-vugajuxopej-xovagofekewiduw.pdfIn PDF document text
    • https://munuteme.weebly.com/uploads/1/3/4/8/134862418/3adf02.pdfIn PDF document text
    • https://sesuwulot.weebly.com/uploads/1/3/1/4/131438847/2904382.pdfIn PDF document text
    • https://zezefikopupom.weebly.com/uploads/1/3/4/6/134686460/wipulupovosinu.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/jajoxulabojaso/school_district_140_illinois.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5268be9fc3622d53d9466/t/5fc7929b0623334b0c6463ef/1606914720782/s4_live_wallpaper_apk_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc676695e8e827d42b421ad/t/5fc9244c92ee881d0b074a4a/1607017548821/mowuwaju.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxadol/budget_2019_highlights.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5cbaf68612547ed7f91bc/t/5fc7effa4790d6605eb652bb/1606938618449/kigeb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/15f37202-935a-4742-8c92-816b92ae1bf8/driving_theory_test_questions_and_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0dea57bf-6713-4f12-a01d-cf977d140ed2/83734641088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53654cb6-8417-4167-b8ad-b0164061342c/tomas_de_aquino_aportaciones_a_la_filosofia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ba29fba-c9fc-45d2-b207-12bf2f9eecf9/2014_ford_focus_factory_service_manu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc188b1c89e1c4b8fc2eaf8/t/5fc5591a3f75b1664385eb13/1606768922351/73607452510.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_off0000c9e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9E8 5236 bytes
SHA-256: 8f5b83f35b0d9ee00c33320fd5e8097aa84f1cc6b99e3cefc2bda0e321c1beb7
font_01_sfnt_off0000dbbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBBB 10064 bytes
SHA-256: 4fabdcdef12eea7730112337f172020407ea1dc34aa9f297d891089e9c671341

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