Malicious PDF — malware analysis report

Static analysis result for SHA-256 2025f4c49589827b…

MALICIOUS

PDF

89.7 KB Created: 2021-03-22 07:04:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 5eb096fae9955778bf77b6665f8f32f6 SHA-1: ef454988962a08f5c54a98b52ea182c64441bd5e SHA-256: 2025f4c49589827b30202cef0e888fecf38908b35602f5d6fa2fdf8ee5c47580
126 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, suggesting a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/strik?utm_term=what+is+the+best+battery+operated+lawn+mower+to+buy PDF link annotation
    • http://fabulouss.space/super_mario_world_japanese_nameji3kg.pdfIn PDF document text
    • http://scarcebook.com/general_theory_of_relativity_dirac4s0na.pdfIn PDF document text
    • https://cdn.sqhk.co/wusirilunoko/1jigbhj/71088044603.pdfIn PDF document text
    • http://fresh-ita.fun/303189535294vtzg.pdfIn PDF document text
    • https://cdn.sqhk.co/wixexozesila/Agdhcjg/zombie_apocalypse_infection_map.pdfIn PDF document text
    • http://ig-socialmedia.xyz/gupazuzazisimigimw529.pdfIn PDF document text
    • http://huseyincanx.com/arrayadapter_in_android_tutorialspointqr08w.pdfIn PDF document text
    • http://smartradiobf.ru/1993_skyline_aljo_travel_trailer_manualzvlvu.pdfIn PDF document text
    • http://true-board1.club/guberalajuvolexixogawm6ct9.pdfIn PDF document text
    • http://dfahsdfgjsfg.online/plantronics_bluetooth_headset_c054_manuale1oiy.pdfIn PDF document text
    • https://cdn.sqhk.co/wolonevavaru/jgeyvr4/34713434976.pdfIn PDF document text
    • https://cdn.sqhk.co/vuvapolaxaj/gwwiiid/mean_pulse_pressure_calculation.pdfIn PDF document text
    • https://cdn.sqhk.co/vobevufubito/bEieHR2/100_bts_songs_offline_apk.pdfIn PDF document text
    • http://ndfnasg.xyz/android_install_platform_tools_command_line44kzc.pdfIn PDF document text
    • https://cdn.sqhk.co/tokarikadez/hhiimks/learnzillion_guidebooks_grade_7.pdfIn PDF document text
    • http://opensalle.xyz/tamil_songs_online_oldpanli.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/wavunot/64400031839.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/visejimexoxexezes.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/76313966989.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b04b91ec-157b-4a51-91b1-d98f7070f2a6/7899842099.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06106d50-069c-4029-b293-87ad7e4521a6/wooldridge_econometrics_6th_edition_solutions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e37f585-bc49-45b6-b1cd-e327582717b0/daniel_goleman_la_practica_de_la_inteligencia_emocional_resumen.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_off00011ff9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FF9 5544 bytes
SHA-256: ff18fd94a1e80f6cdf183db7c61a102c384d4531660888dcfce7716462cce385
font_01_sfnt_off000132c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132C2 11368 bytes
SHA-256: 9f5630aaa03f799a4852cde70ef54f7531b6aa506254df9618f653f4fe3361fa

Open this report in the interactive analyzer, or submit your own file for analysis.