Malicious PDF — malware analysis report

Static analysis result for SHA-256 59655dea43a218e0…

MALICIOUS

PDF

72.5 KB Created: 2021-03-08 23:37:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3aabfc5528033e2a83d8bdcbdbef1dac SHA-1: 9bbcedba4f8dbe75adff47f3b1fd1a3ef258a65a SHA-256: 59655dea43a218e0c5303125d737b0dc9c46bbe686a82c63c6294b3e521a1b6a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jumiwimov.ru/wix?keyword=building+construction+illustrated+5th+edition+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382620/normal_60357cf2c1096.pdfIn PDF document text
    • https://fezagigix.weebly.com/uploads/1/3/0/8/130813643/2e1964b1a597c6.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/8jiTgjc/41740562726.pdfIn PDF document text
    • https://cdn.sqhk.co/dubagelojuwe/hhfZhaj/21st_birthday_cake_decorating_ideas.pdfIn PDF document text
    • https://nepuvojikonutoz.weebly.com/uploads/1/3/4/6/134677469/7141005.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367273/normal_5ff4d847363c4.pdfIn PDF document text
    • https://cdn.sqhk.co/dapalufited/3bjgtQX/gifuxuboturimufubebezo.pdfIn PDF document text
    • http://detonicinitalia.website/monigadumubituxefilo2mn3s.pdfIn PDF document text
    • https://cdn.sqhk.co/gazegarov/3ZgCJjg/38574280309.pdfIn PDF document text
    • http://intereriia.com/27985587457sf344.pdfIn PDF document text
    • https://kovexinuzik.weebly.com/uploads/1/3/0/8/130815277/pezazulaxadij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423429/normal_6045025221725.pdfIn PDF document text
    • https://vixozomaregug.weebly.com/uploads/1/3/1/3/131398278/desosagiganinem-bejigisuda-putikekibuwoge.pdfIn PDF document text
    • http://amorexpo.com/incident_response_reporting_templatellfor.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/8df3ed1a-0270-4e8e-923e-4323355fe214/zonetagolekogakuku.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/13974703490.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/ditaroruwix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c8443028-a357-4338-bd9e-1e264cf326bd/forbidden_psychology_101_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6a67640-94b3-4152-b1bd-55037a659b61/57885711737.pdfIn PDF document text
    • https://s3.amazonaws.com/savukojubusum/kuseje.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25c2aa44-f0d4-4c56-b787-e3aec24d9172/68949346255.pdfIn PDF document text
    • https://s3.amazonaws.com/poresi/old_navy_school_uniforms_canada.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_off0000dde6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDE6 5588 bytes
SHA-256: 4266f9bab521955532a1ea44e7bfb596009cd807f08e71a821a5c994ed8cd15c
font_01_sfnt_off0000f0ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0EA 10280 bytes
SHA-256: 4d14876a0b6e0c9f7cb5a07b3df5efa5cbe326219288c18e8e2108935d7d6c8b

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