Malicious PDF — malware analysis report

Static analysis result for SHA-256 e046df6b44808538…

MALICIOUS

PDF

76.9 KB Created: 2021-03-11 14:45:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 76d6034b1cf68363f9c9a9f81e95bcb1 SHA-1: 10a58efb7e2e216f7f37c9fb36f6031a61ddbe1c SHA-256: e046df6b4480853873dfda78d12195e73dbb9464970c1dafd7587ace84f10b7f
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://mezovuduw.ru/strik?utm_term=how+to+turn+off+dhcp+on+verizon+router PDF link annotation
    • https://cdn.sqhk.co/jenireni/MhfDCYb/car_racing_games_for_pc_2gb_ram.pdfIn PDF document text
    • https://cdn.sqhk.co/gixobujikelu/iiifify/fun_study_skills_activities_for_middle_school.pdfIn PDF document text
    • https://cdn.sqhk.co/vuluzazogur/lKHUOha/telecharger_bike_mayhem_mountain_racing_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pesamelez/tERijia/fefuba.pdfIn PDF document text
    • https://cdn.sqhk.co/moranunemuk/gegjjez/photo_collage_frame_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/LifvXYK/wigupuzedosuvaganar.pdfIn PDF document text
    • https://cdn.sqhk.co/bulenupulabo/gdygegd/lightsaber_colour_rey.pdfIn PDF document text
    • https://cdn.sqhk.co/pozedezupase/gjbgfgd/alter_ego_definition_from_health_guidance.pdfIn PDF document text
    • https://cdn.sqhk.co/faresawuf/ngzrDib/vampire_s_kiss_meme.pdfIn PDF document text
    • https://cdn.sqhk.co/xawefigi/bgjiahd/geditukod.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://6ba812fd-7407-468e-a879-d7284e591ed6.filesusr.com/ugd/31a575_bd431c389d8c4373a2c5684a88a2b721.pdf?index=trueIn PDF document text
    • https://cfc603e6-7cd4-4c42-812b-9722deb80ae4.filesusr.com/ugd/0e9fc2_3bea6838ba0c4132a41590a5ae90c6f0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f84da11-6223-47be-8bd0-3b55865b98e5/disozetufagedetuv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec353ab4-3953-4a68-a8c2-561bc244ca12/zifesoxizopowezaxa.pdfIn PDF document text
    • https://167c8e7b-8160-49a2-a88e-f26749d647c8.filesusr.com/ugd/1ad47d_ecd52921b66a48ef93232a247c141118.pdf?index=trueIn PDF document text
    • https://61069a5e-3c5f-4884-a3c7-8c7552058b74.filesusr.com/ugd/0789d5_d6f1babab6104040aa54686b2cc58b92.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/76540d75-f879-46dd-857a-05f8d9faf407/a_pair_of_silk_stockings_plot_summary.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba3a1f83-beab-494f-ba7d-c247b912a8e6/fender_passport_conference_series_2.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9628ce0b-a730-4c16-b1f6-2f0ffa10e3a9/how_to_clean_black_and_decker_lithium_hand_vacuum.pdfIn PDF document text
    • https://9480ebe7-8096-4165-94d5-b35dd525e9f4.filesusr.com/ugd/07b43d_b653e5c0408f4d548dac94300c1dffd0.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/66812161-74a3-43e0-8c24-af4bad379e2b/39706311670.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f01c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01C 4984 bytes
SHA-256: 2dda20f23d59efed4e85c7b7e57d11eae637fce2491785b2d0f511cac61044a5
font_01_sfnt_off0001012f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1012F 10744 bytes
SHA-256: 60acc4c3abe1fa3c1ba4f33db6781eed8430fd6005ee61e25426ce52cb1417e6

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