Malicious PDF — malware analysis report

Static analysis result for SHA-256 29818e2d8b69fa99…

MALICIOUS

PDF

76.5 KB Created: 2021-03-27 18:24:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: a594ed8465bd465bc4bc6e134caaceda SHA-1: 42f8eef1ebd1bbebd8882c61617c7046e20baa55 SHA-256: 29818e2d8b69fa9948c511b463c6fa6f4e9ebd705221704ad57efe114431b5cf
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The embedded URL points to a suspicious domain, likely used to host a phishing page or download further malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://gimoguvi.ru/strik?utm_term=tcp+ip+model+layers+vs+osi PDF link annotation
    • https://cdn.sqhk.co/damukowabij/fVhg6Mr/samsara_game_level_1.pdfIn PDF document text
    • http://kejurudoji.medianewsonline.com/agua_de_beber_en.pdfIn PDF document text
    • http://palikexifumalam.mywebcommunity.org/lorewiwigemuvu.pdfIn PDF document text
    • https://cdn.sqhk.co/tebefaravuz/gdoePIt/senior_world_easyfone_elite.pdfIn PDF document text
    • https://cdn.sqhk.co/jakovenuz/ugeNrif/information_technology_internal_audit_report.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/why_is_my_lawnmower_backfiring.pdfIn PDF document text
    • https://cdn.sqhk.co/tabuguran/ajcmghL/74088872802.pdfIn PDF document text
    • https://cdn.sqhk.co/batumozi/7jbkMja/81661070759.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/efd5d341-2ff5-41af-89c2-2a1683d85f33/5685520958.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/fine_motor_skills_worksheets_for_grade_1.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/68138089458.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/2000_gmc_sierra_1500_tail_light_wiring_diagram.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/303cdba6-0356-46dc-b3eb-a8007ad1fe46/29425472809.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/74749005394.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4ebe74a-bf55-47b5-9dca-bc1e60c4315b/robert_collier_letter_book_public_domain.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/701dc515-3fa6-410b-9675-69db5c043610/junji_ito_anime_movies.pdfIn PDF document text
    • http://perexuwofogefo.onlinewebshop.net/biblia_vanzarilor_jeffrey_gitomer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/750fe440-9996-46f6-b411-397282960450/how_to_use_spectra_s1_with_medela_parts.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98403621-a70a-4a2d-8849-8f8a32c08fb7/tukifawimirof.pdfIn PDF document text
    • https://s3.amazonaws.com/magapeguwabe/anthem_chapter_6-_8_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/daniwodug/courtin_in_the_kitchen_sheet_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2668c9f8-c94b-4f8c-ab12-cff2f7e19bb8/why_is_it_important_to_have_a_clear_speech_goal.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5f104a7-6aa0-4b3a-9d47-0a26d7751e07/i_moved_your_cheese_audiobook.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_off0000eee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE1 5332 bytes
SHA-256: f4a71aa95bd96d03d489f1bc3dc81aabfc672fe0b1dabd166fb21d7fb4b356c2
font_01_sfnt_off000100f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100F7 10384 bytes
SHA-256: f7deacbf553f1938a2966bff3ffe9d22fde78c500c3384be291679a3715fe09a

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