Malicious PDF — malware analysis report

Static analysis result for SHA-256 823bb9711ceeb745…

MALICIOUS

PDF

63.6 KB Created: 2021-02-12 22:08:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 79274d72d9fafde4851aec49bee6635d SHA-1: 10ee98c44f37db9b31ef1883225dae34729aa37c SHA-256: 823bb9711ceeb74541d13533c7d30853a1b75dd19e19f556bfb11ce933cc81eb
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=magellan+sportrak+pro+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481154/normal_5ff65efa3bf4a.pdfIn PDF document text
    • http://wersita.space/vupagavis7fka.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392439/normal_5fd7af5b550ba.pdfIn PDF document text
    • http://webpost.pro/373109403054n4ju.pdfIn PDF document text
    • https://vojumemij.weebly.com/uploads/1/3/4/4/134473557/6622358.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379987/normal_60183ea470808.pdfIn PDF document text
    • http://tublitalia.space/goziwegixibut0jsgt.pdfIn PDF document text
    • http://jefaritixe.22web.org/giziwaxodidone.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367650/normal_5fce99f5c3cd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465548/normal_601802ee40965.pdfIn PDF document text
    • http://nudistoff.club/business_management_chapter_17_quizletekbal.pdfIn PDF document text
    • https://bobifadilow.weebly.com/uploads/1/3/5/2/135295989/tijogulobo_wunetis_jelewevatizag.pdfIn PDF document text
    • http://mipuruf.22web.org/tezexasogige.pdfIn PDF document text
    • https://buzowupe.weebly.com/uploads/1/3/1/4/131483044/33e75cced24.pdfIn PDF document text
    • https://lijafaxad.weebly.com/uploads/1/3/5/9/135989690/jozisitorupukar.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/wiwamoxamo/68875227146.pdfIn PDF document text
    • http://jezepanan.rf.gd/commandos_strike_force_game_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/wozowuledij/braveheart_theme_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/35059172382.pdfIn PDF document text
    • http://lekinip.epizy.com/cultural_factors_affecting_consumer_behaviour.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_off0000bdb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDB9 5208 bytes
SHA-256: e1d037dd446c96ca57f0ba1a152372625f605e4a0cdd54a292622eaf975185d8
font_01_sfnt_off0000cf6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF6D 9752 bytes
SHA-256: d11c41ef34295fb42636d69d731415728c90a9ef8396ec3490f39f1b3404c138