Malicious PDF — malware analysis report

Static analysis result for SHA-256 72e89586550d6213…

MALICIOUS

PDF

65.8 KB Created: 2021-02-07 17:19:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: b7284eab4fd135eb5b2a778cb62d1022 SHA-1: 071a667340c307ba607144c3ccf8f04ab8b0c2ea SHA-256: 72e89586550d6213fcb1eb4824e5acbb9c9f52861762c254742865c5e6006e71
126 Risk Score

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
  • 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://maypoin.ru/wb?keyword=breckenridge%20weather%20report PDF link annotation
    • https://cdn.sqhk.co/noxivudeva/JOPjcr1/playstation_store_black_friday_2020_end_date.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457586/normal_5fda6c9fcd62d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427828/normal_5fd7c2400d7bc.pdfIn PDF document text
    • http://vuvuga.xyz/kelarudogmxgb3.pdfIn PDF document text
    • http://reduslimitaly-ufficiale.site/diversion_meaning_in_urduodagj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417662/normal_600aa5aa3a288.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475559/normal_5fffe12ed52ce.pdfIn PDF document text
    • http://reflectionss.space/befefuzavujewot1yy5c.pdfIn PDF document text
    • http://dixajadabaw.66ghz.com/cp_company_size_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/zatuwifezub/thctif9/1699548889.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491671/normal_5fc6b71e8fac2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416321/normal_600b68eeebab7.pdfIn PDF document text
    • https://cdn.sqhk.co/vaminika/Ijb4vha/84505492461.pdfIn PDF document text
    • http://gachihyper.xyz/nikorekol0co51.pdfIn PDF document text
    • http://hookup157.site/ntpc_exam_question_paper_2018hiloh.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/timituvupame/12947786096.pdfIn PDF document text
    • http://nodikisiti.rf.gd/adobe_flash_player_android_9._0._124.pdfIn PDF document text
    • http://borarujedumamut.epizy.com/resistor_color_code_worksheet.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_off0000c58a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC58A 5328 bytes
SHA-256: cd328ffbd10982194b499ad1009197af96adea7e59d07e7c4e03464fa7f73605
font_01_sfnt_off0000d7be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7BE 10088 bytes
SHA-256: be5768bd9affd0f72eff41ea87d5b264f66643ec8036a04702cd3ce982d95a99