Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ebf03ca5093487a…

MALICIOUS

PDF

75.7 KB Created: 2021-03-01 17:23:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 671311ad84db197568e28212c501a602 SHA-1: 4871f8b8521a0395f5b6d5aa7d108ae5fd459c7f SHA-256: 0ebf03ca5093487addd29cf04c9c6832f40495f071448045bd9c7e1ee189e66f
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://jumiwimov.ru/award?keyword=how+much+is+my+browning+a5+worth PDF link annotation
    • http://lazujifoxupa.getenjoyment.net/survey_on_machine_learning_algorithms_for_liver_disease_diagnosis_and_prediction.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/35448478495.pdfIn PDF document text
    • https://cdn.sqhk.co/zebimapajod/idE4big/pesokifekibamadud.pdfIn PDF document text
    • http://bavipame.22web.org/sears_craftsman_7.8_hp_4200_watt_generator.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485702/normal_5ff95cffe2492.pdfIn PDF document text
    • https://cdn.sqhk.co/lijuwezasip/jhhirEz/guns_of_glory_codes_may_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/xiwogoxozoxi/vt4heic/zipaveta.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481072/normal_5fe08808e008d.pdfIn PDF document text
    • https://cdn.sqhk.co/moturira/djfgcjc/arduino_tcs3200_color_sensor_project.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380854/normal_5fe0426056adb.pdfIn PDF document text
    • http://feremujidonigu.getenjoyment.net/41304651845.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kilarosine.atwebpages.com/am_fm_radio_best_reception_reviews.pdfIn PDF document text
    • http://najufijipavavot.rf.gd/english_learning_books.pdfIn PDF document text
    • http://bezegorev.epizy.com/61827071675.pdfIn PDF document text
    • http://vejidot.epizy.com/what_are_some_teaching_strategies_for_special_education_students.pdfIn PDF document text
    • http://bovapefe.epizy.com/25867917522.pdfIn PDF document text
    • http://megigezorozo.atwebpages.com/skyworth_remote_codes.pdfIn PDF document text
    • http://gosaduzunake.myartsonline.com/kotor_guide_korriban.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_off0000eab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB8 5600 bytes
SHA-256: f75926c6f8fff40f7152bbeab0c04c10325eb240513269f59e1c49f6db465c7f
font_01_sfnt_off0000fdb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDB7 10608 bytes
SHA-256: 43b06ba3e3f3d809d925de55f569acf908bae44bb7d37e117f8e75dd82b8c54d