Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd47802e123aebd…

MALICIOUS

PDF

75.6 KB Created: 2021-03-18 10:40:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-28
MD5: c756ba94016bb9942a477677638871af SHA-1: 5a1a3d8c90f8fda266479463804ff6f93e59e15b SHA-256: ffd47802e123aebd9d4ebf49f7e75bd6ac4caa73928d5d58de39ec3dd57e8142
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains numerous embedded URLs, with a primary focus on directing users to 'fokemale.ru' which appears to be a phishing or malware distribution site. The PDF's structure suggests it's designed as a link farm, likely to obscure the true malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://fokemale.ru/strik?utm_term=pentair+pool+pump+repair+near+me PDF link annotation
    • http://jijuduli.mywebcommunity.org/71108057655.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418777/normal_6035063c5972f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446285/normal_600b61158586e.pdfIn PDF document text
    • http://bizelejumavasi.iblogger.org/74398728131.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366346/normal_6036c23e9d95a.pdfIn PDF document text
    • https://cdn.sqhk.co/mowanideju/gdzgchc/42667184399.pdfIn PDF document text
    • http://5gusevshop.space/shark_navigator_deluxe_brush_not_spinningigjrq.pdfIn PDF document text
    • https://cdn.sqhk.co/suxunuke/emIvYij/crazy_games_zombie_mission_3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366009/normal_60348a4db6d4c.pdfIn PDF document text
    • http://detonic-shop.website/attestation_formation_continue_vtc48b7f.pdfIn PDF document text
    • https://cdn.sqhk.co/fefamuve/fjfxgdr/31618411002.pdfIn PDF document text
    • https://cdn.sqhk.co/nebafori/iiic4gw/dark_side_of_the_ring_season_1.pdfIn PDF document text
    • http://sokolov.fun/98158974939cxch8.pdfIn PDF document text
    • http://pemotutafid.mywebcommunity.org/22683730719.pdfIn PDF document text
    • http://italywow.info/datepicker_date_format_with_time633b6.pdfIn PDF document text
    • http://cmbmarketing.agency/sonic_adventure_2_gamecube_save_file4ydwi.pdfIn PDF document text
    • https://cdn.sqhk.co/sexuzoropa/7H3KT9Y/jelasobamewenazalevakebi.pdfIn PDF document text
    • http://fojukivijivik.medianewsonline.com/what_is_the_best_online_yoga_teacher_training.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/kulinisokakewi/ashoka_film_song_video.pdfIn PDF document text
    • https://s3.amazonaws.com/ragejufa/gerixolatagorebapeju.pdfIn PDF document text
    • http://jevopuvejamiv.epizy.com/jobanowuteg.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/dusuregixejidotubojupi.pdfIn PDF document text
    • https://s3.amazonaws.com/wuxupewu/56042362281.pdfIn PDF document text
    • http://gizixaxeviduf.myartsonline.com/oceanography_an_invitation_to_marine_science_9th_edition_download.pdfIn PDF document text
    • http://puxakuxuvon.epizy.com/what_does_a_call_to_action_in_a_persuasive_essay.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_off0000e8fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FC 4788 bytes
SHA-256: 4f3cae4a2aa76d94549ceb1deb462be66687fa8f4fbb39d98fc7750c0129307d
font_01_sfnt_off0000f92d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF92D 11760 bytes
SHA-256: 828fe1467270a53555f45b85973dfc3e4dcc838ce31dad6fe215e4dbf77d35c2

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