Malicious PDF — malware analysis report

Static analysis result for SHA-256 b568c4e849fabcac…

MALICIOUS

PDF

70.8 KB Created: 2021-03-11 17:05:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: af1a41f520622c11d6bf8c8503228a20 SHA-1: eb6cd90b5f26d0b4a2255bc5d41a017f2e4abf55 SHA-256: b568c4e849fabcac7e4d8864b50e2c3dda5de993b748ebc8bffa2beca8522a6d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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.
  • 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://lozipotod.ru/infin?keyword=diccionario+biblico+reina+valera+1960+pdf+descargar PDF link annotation
    • https://lemusudavigi.weebly.com/uploads/1/3/5/3/135395292/5432955.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474465/normal_600dfc5d0c6c5.pdfIn PDF document text
    • https://cdn.sqhk.co/penunotati/hfghgJJ/my_messenger_app_keeps_closing.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391620/normal_6009c0e6192fa.pdfIn PDF document text
    • https://cdn.sqhk.co/forinabam/oiejcBN/1878467163.pdfIn PDF document text
    • https://dipupobelazaw.weebly.com/uploads/1/3/1/3/131380354/kunuxemifewime_finup_minutoguvaxer.pdfIn PDF document text
    • https://bozobazevadetob.weebly.com/uploads/1/3/1/6/131607158/xanotapagukati-gejaxubuve-kebupelagabulem-tilebifunipenu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500670/normal_5fe8e4cccca71.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370528/normal_5ff6a0a87a783.pdfIn PDF document text
    • https://cdn.sqhk.co/tagisojitilu/4zgfghE/dushman_1971_full_movie_720p.pdfIn PDF document text
    • http://kusowuwazugup.22web.org/17795116163.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495525/normal_600933ded82a2.pdfIn PDF document text
    • http://defulupi.iblogger.org/84061623605.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/6bd30b27-fb76-4f10-a9e5-735562bda421/moto_g_6_user_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6a70eeb-91f1-482b-812c-f1676da16492/wow_classic_system_requirements_laptop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc264f59-7a7c-43d7-bf79-3957fd2d4820/razexof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84388da2-3f71-4da9-8c02-00aa43d588ef/baby_rudin_real_analysis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/33b1733d-3588-461a-ab9e-55e6ba46c538/marvel_deadpool_comics_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28d1664a-b1b8-493b-a03f-afa340fc4391/74898956878.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7751aacb-20bb-4c0a-b870-ba95b2b890c9/ryobi_10_drill_press_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9067698c-b7d4-4e0c-a6f2-ee7342415d8f/what_is_a_good_ride_on_mower.pdfIn PDF document text
    • http://tudegelufer.rf.gd/c_h_l_ka_full_form.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_off0000d3e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3E8 6024 bytes
SHA-256: 2fb342ebaaf6b6e084329eba7bf9cee1d6f8fc41fbb1e6b2b1635d066fb41f33
font_01_sfnt_off0000e883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE883 10572 bytes
SHA-256: 0f2a480bb348fdea3f07d643dce294909abee6626567ee9cd8544603a0c7853b

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