Malicious PDF — malware analysis report

Static analysis result for SHA-256 889bbe9f2721bda0…

MALICIOUS

PDF

73.3 KB Created: 2021-03-04 18:58:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f688606fb46a4022e0bbae011a667d6b SHA-1: 92de18853fea0630b3001f63372c3dfa517dfb1d SHA-256: 889bbe9f2721bda02ae84d5a55e3e9a168f5a262ef926f6333b18a013e4fccf4
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://vilenefex.ru/123?utm_term=myron+mixon+beef+brisket+recipes PDF link annotation
    • http://xikimubixod.22web.org/vuluzadupakuzasogozagix.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459320/normal_60308d8f280b0.pdfIn PDF document text
    • http://sizegoduxuxa.mygamesonline.org/9696955497.pdfIn PDF document text
    • http://vujewivar.iblogger.org/wepovazameguperame.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480735/normal_5fd66e1667882.pdfIn PDF document text
    • http://lebepufu.mypressonline.com/robertshaw_thermostat_9420_installation_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501791/normal_5fe70f78ac31f.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/59dacbfe-aa89-49ed-b76b-3a9e78114df4/dell_latitude_e6410_datasheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e2fc751-068d-45ec-97a1-4d3543c16229/hypertherm_powermax_30_or_45.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/efb89c71-6b3b-40e3-9de8-7eb5b9aed594/84956392130.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/712ae159-c70a-4e39-9b35-10ff80cf73f6/yamaha_moxf8_manual_espaol.pdfIn PDF document text
    • http://genufewewirim.rf.gd/antagonista_farmacologia.pdfIn PDF document text
    • http://zisafaziga.epizy.com/7798725135.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/983893fb-2098-4700-b1fa-510a69257947/44719134092.pdfIn PDF document text
    • https://d54d55f4-8004-4613-9f19-7b96cbed0ae7.filesusr.com/ugd/ce4b32_d7942966d9e34bf1aa3fa9a3ca663b09.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bbec7b0-988c-4321-ac07-b747ea43d8d0/misimu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4b889b6b-3c63-41e6-91ee-8dccdf38d6ab/list_at_least_three_important_purposes_of_writing_report_and_explain_them_brainly.pdfIn PDF document text
    • https://9849c7ec-8b19-4b81-9a64-db2537ea7c40.filesusr.com/ugd/97b1c0_a3021e002ec64eaca8bdba77ee3e1eeb.pdf?index=trueIn 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_off0000e296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE296 5300 bytes
SHA-256: 4bf9223b0267875489bdc1e84e45f6b35a86d6c59a6ee046a04b0d71bdaab13f
font_01_sfnt_off0000f4a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4A9 10444 bytes
SHA-256: c8c2736f18575348b5590980aa75397f755bf716d7cd1c9c7b7cb17e34dc539b

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