Malicious PDF — malware analysis report

Static analysis result for SHA-256 25b976a35241e8b3…

MALICIOUS

PDF

66.6 KB Created: 2021-03-05 01:00:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 62ab508fa98712da4b30ee68a2d0c865 SHA-1: 2f78db41132d1546c2d53ef8d6c3abe5a08e4c45 SHA-256: 25b976a35241e8b395a3c2d1058cf40ffdbcf7aec52efdfeade70e87b6f4c894
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://druttle.ru/wix?keyword=donnie+darko+frank+costume+diy PDF link annotation
    • http://fobativ.mywebcommunity.org/lizovotofapimipon.pdfIn PDF document text
    • http://xonibiz.22web.org/minuzojuxurit.pdfIn PDF document text
    • http://tipepusevuw.iblogger.org/basara_2_free_games.pdfIn PDF document text
    • http://mamefumiwuto.mywebcommunity.org/are_sunkist_fruit_snacks_gluten_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c400ab32-6143-4d48-a74b-b071f060e13b/the_high_unemployment_during_the_great_depression_continued_through_quizlet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8cd84af1-bce6-4822-a1e9-e5d6d23c7937/dimopefux.pdfIn PDF document text
    • http://jeximojela.myartsonline.com/pisup.pdfIn PDF document text
    • http://vilatelisoto.onlinewebshop.net/how_many_carbs_in_a_taco_bell_triple_double_crunchwrap.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b2aae81-fe78-45db-9d05-2f36565de1b6/defodegofizo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/96e0c232-1930-4c34-a8dd-11e6c0443218/10988184157.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8dc429c9-65e8-4861-81be-82bc4a1d30bf/2002_ford_ranger_service_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25cd7e27-7c8f-461a-9028-fb35c681a668/what_is_a_zero_waste_box.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/535d93df-389b-43f8-a7c5-5cfc68117288/bujopesam.pdfIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/popovinipewirelowemubef.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6028ac9a-1cda-43f8-9763-0494a2168e00/favesirebaduloweguxovodi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c7e1b15-9128-48bb-9124-9f8ff320ff3c/pokemon_fire_red_speedrun_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/827b962c-06af-4fb1-9980-6e4dfea5df3e/pepetaxiwarok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a019335-2526-4dd0-ad36-d1c881f58a7b/dynamic_tension_back_exercises.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_off0000c8b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B8 5300 bytes
SHA-256: bb5df83390d4310b91e2ff006c73ae57e701d410156cf8f6a387dab1018aab6f
font_01_sfnt_off0000dabd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDABD 10212 bytes
SHA-256: 9e4b35cd00cd1d7aec718e0daee6539b7c90f4b44d8552f1d3952646e6ca5e63

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