Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdce418ea571dd23…

MALICIOUS

PDF

84.4 KB Created: 2021-03-19 10:04:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: b09d8677b9694a046f6293a790638066 SHA-1: cf642a575e1c1db6dd04a92e7b5e619936aee82b SHA-256: cdce418ea571dd235ee6624d4c7f8e25b3fbada175a1c1dc87832d5da46faaad
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 are part of a link farm hosted on disposable domains, indicating a phishing or malicious redirection attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to direct users to a malicious site via the 'Lakota woman movie online' lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://druttle.ru/strik?utm_term=lakota+woman+movie+online PDF link annotation
    • http://fawikenaxalu.scienceontheweb.net/differential_calculus_bsc_1st_year.pdfIn PDF document text
    • http://ruvagusowi.22web.org/free_music_to_android_tablet.pdfIn PDF document text
    • http://characduwe.space/brother_hl_l2360dw_wifi_setupku0gl.pdfIn PDF document text
    • http://doordash.fun/79465398958cct7v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368970/normal_604de20e39db3.pdfIn PDF document text
    • http://negodebozebe.iblogger.org/been_here_all_along_sandy_hall.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459188/normal_603eabb4983c2.pdfIn PDF document text
    • http://redit.fun/wash_white_sheets_bleache0qxx.pdfIn PDF document text
    • http://durebemidiges.getenjoyment.net/los_medios_de_comunicacion_actualmente.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426967/normal_5ff4879b8ccd1.pdfIn PDF document text
    • http://pepirizibizedel.22web.org/bokavonuzabujoludo.pdfIn PDF document text
    • http://lishop.site/cartoon_network_movies_free6da9b.pdfIn PDF document text
    • http://kewavixim.22web.org/new_audio_song_in_tamil.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424982/normal_5fd7916ac4022.pdfIn PDF document text
    • http://sun-italy.space/44266525909hba7z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377656/normal_600ced4199126.pdfIn PDF document text
    • http://rivepozepuxar.mywebcommunity.org/koguboz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://raxajabidadida.onlinewebshop.net/4604395476.pdfIn PDF document text
    • http://nobidaponofuxul.epizy.com/what_is_the_moral_of_twilight.pdfIn PDF document text
    • http://lesexugisitu.rf.gd/jcaho_restraint_guidelines.pdfIn PDF document text
    • http://fererugame.epizy.com/relationship_questions_and_answers.pdfIn PDF document text
    • http://fugufaza.myartsonline.com/langman_s_medical_embryology_12th_edition.pdfIn PDF document text
    • http://sutuvufekejute.epizy.com/inventory_website_template_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df68bb17-06fd-4463-a807-0b6b315b6f5c/sony_cyber-shot_rx100_iv_price_in_malaysia.pdfIn PDF document text
    • http://tuguwobafadurot.rf.gd/plant_biotechnology_reports_if.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fd74641-b993-47ca-a71e-0d28f74d111b/78507307663.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_off00010dc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC7 4716 bytes
SHA-256: 999b742aeb6a8ced8630e26936676ef2845adf763885eac8d166de9f135eb063
font_01_sfnt_off00011de0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DE0 11316 bytes
SHA-256: 16d78ef99fe9b33cc0815d2c9024022ae3c0b77fba6735f4f75b37218e13431a

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