Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7779b5942329947…

MALICIOUS

PDF

78.6 KB Created: 2021-02-19 06:11:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0aa49838522f79003caa747bc9fb2a80 SHA-1: d7e0afc87c2282f0a75c0377f66b3c4109408026 SHA-256: b7779b5942329947664fb174c6ae4a34cc0e11265261d0f26ac3ee3238b8bd37
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=can+stress+trigger+anxiety+attacks PDF link annotation
    • http://ideaita.fun/anti-_aircraft_definition_examplecym6m.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490746/normal_6029fc416d072.pdfIn PDF document text
    • http://eglo.club/lagawe_lu_jab_lipstick_mp3_download0nf6y.pdfIn PDF document text
    • http://poverkavoda.website/loosening_of_associations_formal_thought_disorderay2qw.pdfIn PDF document text
    • http://phtech.site/corsair_k95_rgb_platinum_xt_mechanical_gamingwzdj1.pdfIn PDF document text
    • http://tiwirodizefa.iblogger.org/cao_beveiliging_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375194/normal_5fd2d00035c93.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454668/normal_5fddcab7390ae.pdfIn PDF document text
    • http://wimosam.22web.org/gurixer.pdfIn PDF document text
    • http://cabinetsop.xyz/78863258987qmjoo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://muzafevabuma.rf.gd/bachelor_thesis_report_format.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxepiduded/sites_to_hollywood_movies_free.pdfIn PDF document text
    • http://zovuzizosagedip.epizy.com/drylin_n_linear_guide_system.pdfIn PDF document text
    • https://s3.amazonaws.com/zatazewoz/call_ringing_sound_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/acrobat_reader_for_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/formation_alternance_rh_toulouse.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/personal_freelance_website_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/schma_anatomie_du_coeur.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/kagir.pdfIn PDF document text
    • https://s3.amazonaws.com/zuxime/asuran_tamil_movie_full_movie_free.pdfIn PDF document text
    • http://xewewiwuxadul.rf.gd/suwibonetiwari.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_off0000f940.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF940 5072 bytes
SHA-256: 25436f5587faf2684e90cf841c552a097f49cd62558a157a5a3ae53cbf150b20
font_01_sfnt_off00010aa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10AA2 10232 bytes
SHA-256: 4809ce783a9bf90c33c37ae2c8303b9649cdb3ff547ba1b5595c95406e8f5dba

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