Malicious PDF — malware analysis report

Static analysis result for SHA-256 00c0dbfd7006bb63…

MALICIOUS

PDF

109.4 KB Created: 2021-05-02 14:11:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 972c340814bdb248ea91c7b794a1d09e SHA-1: 2f6e02e6972c5c1a688fe7cfaa463f98840b8e6f SHA-256: 00c0dbfd7006bb6312dc60c547d1e5bf3a46774dd5570420d692fe2307c98fe4
126 Risk Score

Malware Insights

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

This PDF document contains a lure related to a popular video game giveaway, directing users to a suspicious URL. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm on disposable hosting, and the ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URL likely leads to a phishing or malware distribution site.

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://jottigo.ru/strik?utm_term=is+gta+5+free+on+ps5+reddit PDF link annotation
    • http://lorenbayi.com/80709128552kqaga.pdfIn PDF document text
    • http://povenom.22web.org/23034445530.pdfIn PDF document text
    • http://help-copyrighteamservice.com/wibowebupaxomipufependr0w0.pdfIn PDF document text
    • http://24goodstore.site/onn_roku_tv_32_inch_pricelz3yu.pdfIn PDF document text
    • http://fitukogamoj.iblogger.org/learning_astronomy_by_doing_astronomy.pdfIn PDF document text
    • http://webdefilmizle.com/pekaludigufibutdhowq.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/fejififimaketo/android_17_dokkan_event_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af636b9f-a202-4230-ae9d-3b8757d4808f/jizunopa.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaporam/arimo_font_mac.pdfIn PDF document text
    • http://xabiworaw.epizy.com/la_villa_cesar_aira_gratis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dd246ce-f056-47cc-82da-a107975c3fa5/what_are_the_roles_of_entrepreneurship_in_economic_development_in_nigeria.pdfIn PDF document text
    • http://xopapikalemeb.rf.gd/algebra_2_volume_1_houghton_mifflin_harcourt_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/62dc3107-61f8-47f6-ab76-abd601cd8243/chefs_choice_knife_sharpener_312_instructions.pdfIn PDF document text
    • http://pipobibof.rf.gd/dark_souls_trilogy_compendium.pdfIn PDF document text
    • https://s3.amazonaws.com/gomakobez/89939852319.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/abe5a770-acdf-4d7f-b94d-917cc7ee246f/95_honda_shadow_1100_battery.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxegu/knowledge_base_article_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89b890d3-469e-498c-a5ca-6117aeb15507/how_to_send_certified_mail_online_usps.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/17779651828.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/75332807619.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c7ab093-5d82-4644-ad11-0a2aa48c37e4/47115548339.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/713a8fcf-d6de-4dac-bb16-f6e481394dac/49049652644.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_off00016ab2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AB2 5240 bytes
SHA-256: ca005e082a1c3ea2c2f2808debdead100c45759c8feff4ebb970ac16d070dba4
font_01_sfnt_off00017c9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17C9A 12732 bytes
SHA-256: 352a48383a5fdc563bae4ef810d8bc3c897c3048b9b419efb9f6108b0e681a3b

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