Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fea65f5b57c206a…

MALICIOUS

PDF

75.2 KB Created: 2021-03-27 19:00:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7be0ac5011b8b31f199ed7cc5c7b3628 SHA-1: 28a6b35b213ddbea077c4abf35594d7ad6cdb354 SHA-256: 3fea65f5b57c206a57b4ede2a85123ffe5e38196bb55316bd5b251223a3a7446
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the phishing lure suggests the document is designed to trick users into downloading further malicious content, potentially related to visa applications.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lozipotod.ru/123?utm_term=bangladesh+visa+form+karachi
    • http://oneitstore.info/64241881288eflw9.pdf
    • https://cdn.sqhk.co/vuluzazogur/z6igvpp/nutricion_enteral_y_parenteral_arenas.pdf
    • http://axecheat5.xyz/alexander_the_great_deathh7qto.pdf
    • http://braco.ru/737871408246ilhg.pdf
    • https://cdn.sqhk.co/mitejapeki/hjbjdME/mazel_tov_song_lyrics.pdf
    • http://olymptrade.buzz/jejiwukudokejiwoujq8b.pdf
    • https://cdn.sqhk.co/wogefosa/GtGHjhi/xowokotunakorebobovasebum.pdf
    • http://bazis-rostov.com/58468842850xgk0e.pdf
    • https://cdn.sqhk.co/redusebi/ihjQgjO/mass_email_google_sheets.pdf
    • http://mklhhhh.space/buremagobudiz5eyop.pdf
    • http://trokot-tonirovka.online/tamedkrjns.pdf
    • https://cdn.sqhk.co/bipuzojafa/cjehbjh/describe_a_city_block_in_spanish.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pujinit/go_math_answer_key_1st_grade.pdf
    • https://uploads.strikinglycdn.com/files/a567e9a9-877a-4a06-a0c4-41ad65b3516a/34356888385.pdf
    • https://uploads.strikinglycdn.com/files/a9c9a9cc-6e59-45d1-b2ab-23f2affc5d94/jersey_mikes_turkey_ingredients.pdf
    • https://uploads.strikinglycdn.com/files/d3918bc9-a6b5-4803-b021-8bc2df76c611/59824365900.pdf
    • https://uploads.strikinglycdn.com/files/e5f5ff39-6316-4dd4-a05e-d58fbf5bb533/pathfinder_campaign_books.pdf
    • https://s3.amazonaws.com/kavalukato/cash_disbursements_journal_template.pdf
    • https://uploads.strikinglycdn.com/files/724bed33-a673-4f03-8556-dcc1eedd64af/death_note_2015_movie_trailer_reaction.pdf
    • https://s3.amazonaws.com/loxopudizus/vagonojexoninolowom.pdf
    • https://uploads.strikinglycdn.com/files/ba3dc86d-9d17-447b-ba9f-a81629b4a06a/which_bible_is_the_most_accurate_translation_of_the_original_text.pdf
    • https://s3.amazonaws.com/voxulija/is_it_hard_to_get_real_estate_license_in_florida.pdf
    • https://uploads.strikinglycdn.com/files/c94988b5-e0d7-4ec7-97fd-f44f353f461f/gerazelif.pdf
    • https://uploads.strikinglycdn.com/files/853c11c8-6ca3-49b0-8336-132045392817/black_and_decker_lste523_20v_lithium_ion_string_trimmer.pdf
    • https://uploads.strikinglycdn.com/files/7f9ccc74-aeca-4129-acbd-bf6086e0b4e1/52794559381.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e88a.bin
761b9fccaf1595e891a970e12f00e0f4d6b1e4182309424ac6cd031d68027e89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE88A 5608 bytes
font_01_sfnt_off0000fb7f.bin
e67ebee2bb88720f7a5de39d0796d2f570816c5016f5baaa491fa837425a9966		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB7F 10408 bytes

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