Malicious PDF — malware analysis report

Static analysis result for SHA-256 859de7aa732de8c9…

MALICIOUS

PDF

73.5 KB Created: 2021-02-27 15:47:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 046020e63fe12713b7d5ec5c6a20f0e7 SHA-1: c106f8e39c99854051c90b5ecabfaf17993e1845 SHA-256: 859de7aa732de8c96d63049a2a392ca05ebcf351dbe8e2708690b12e203b95f1
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/123?utm_term=is+swift+code+needed+for+international+wire+transfer PDF link annotation
    • https://cdn.sqhk.co/davusegeb/haijieb/jobupeledolu.pdfIn PDF document text
    • http://mexuloxuxinona.iblogger.org/gumaranurutenilugigen.pdfIn PDF document text
    • http://gagewetero.iblogger.org/nucleo_celula_eucariota.pdfIn PDF document text
    • https://moforikegumiret.weebly.com/uploads/1/3/2/6/132680993/pibesexenobaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385214/normal_60152f054ca5f.pdfIn PDF document text
    • http://wititabeg.22web.org/lemek.pdfIn PDF document text
    • http://tesepaxe.iblogger.org/30120769382.pdfIn PDF document text
    • http://rumajasajobotod.iblogger.org/sparkfun_ccs811_datasheet.pdfIn PDF document text
    • http://pofevezale.22web.org/jilujoludufugovigikaviga.pdfIn PDF document text
    • https://fuvetowonilup.weebly.com/uploads/1/3/1/3/131383456/6151913.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480905/normal_602a0a356a0d8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wodefelid.rf.gd/40436081839.pdfIn PDF document text
    • http://juvugevumeki.epizy.com/short_course_for_interior_design_in_manila_philippines.pdfIn PDF document text
    • http://refowokewip.rf.gd/tupogonan.pdfIn PDF document text
    • http://bixerexexotepe.rf.gd/arcgis_spatial_analyst_extension_free.pdfIn PDF document text
    • http://xozelabudizi.epizy.com/fallout_4_companion_weapons_guide.pdfIn PDF document text
    • http://sugebajofurite.rf.gd/how_many_colombians_live_in_usa.pdfIn PDF document text
    • http://bukaduxanob.epizy.com/error_reported_above.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_off0000e060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE060 5044 bytes
SHA-256: bd8d7e5b979e6ff59d5fdae5e10fc04a978e7b55588fcc46cf34e8e4aa325d87
font_01_sfnt_off0000f1a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A9 11488 bytes
SHA-256: c492ca7f07eb618d5a7cd226fd802992acc2b8154779020f17c9b41f04f1a313