Malicious PDF — malware analysis report

Static analysis result for SHA-256 1144aace4966304d…

MALICIOUS

PDF

68.1 KB Created: 2021-02-21 10:32:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b0a0607a005cfbed4b95c0a9bbc99e7c SHA-1: fe0d06c3c99f120d0fbe975bdbf6800f62def1c4 SHA-256: 1144aace4966304d9070450deaae84b2f13e9395384af9efd44a0444d1f0614d
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
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://dixozetazexode.weebly.com/uploads/1/3/4/4/134472526/659f21c06f.pdf.
  • 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://jacksth.ru/wix?keyword=chemistry+matter+and+change+chapter+14+study+guide+answers PDF link annotation
    • http://putinoid.ru/smash_it_with_a_hammerqjzod.pdfIn PDF document text
    • http://salebox.shop/segedisasgisy.pdfIn PDF document text
    • http://euroshopmn.space/android_version_9_devices8ho5d.pdfIn PDF document text
    • http://wide-take.top/pudorigapisa4f7ok.pdfIn PDF document text
    • https://dixozetazexode.weebly.com/uploads/1/3/4/4/134472526/659f21c06f.pdfIn PDF document text
    • http://nigufuf.iblogger.org/pevizakugenajop.pdfIn PDF document text
    • http://nonimejusujajo.22web.org/angularjs_form_example_with_validation.pdfIn PDF document text
    • http://famojefefe.iblogger.org/68166978289.pdfIn PDF document text
    • http://bonusiotsbera.online/pdf_to_image_converter_free_download_for_pcxql9n.pdfIn PDF document text
    • https://cdn.sqhk.co/pujixefan/jhidicf/97558031360.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/hjgdsK2/archero_guide_july_2020.pdfIn PDF document text
    • https://latibexuwer.weebly.com/uploads/1/3/0/7/130776356/bokeduf_mofifukofax_babap.pdfIn PDF document text
    • https://cdn.sqhk.co/feketukadoz/ha2ogi2/square_quickbooks_integration_review.pdfIn PDF document text
    • http://nutesane.iblogger.org/17921155262.pdfIn PDF document text
    • http://reduslimitaly.website/235375557369t5jx.pdfIn PDF document text
    • https://cdn.sqhk.co/mexovaru/8E85ght/thrift_plus_net_worth.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/dumupa/63730213542.pdfIn PDF document text
    • http://sexosur.epizy.com/axis_mutual_fund_sip_cancellation_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/45770553559.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_off0000cc3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC3D 5696 bytes
SHA-256: 1c4b8c948b428c71476be7a8ee06f655d87e53da9c99df88f25100114d803055
font_01_sfnt_off0000df90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF90 10272 bytes
SHA-256: fe64187634cdfebb7e4f0eef96462d36419f89b44c47e1bf2c73575a5f27ae28