Malicious PDF — malware analysis report

Static analysis result for SHA-256 89d30d04d294b020…

MALICIOUS

PDF

75.3 KB Created: 2021-06-09 22:36:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3ae4923bbcd85ca86a9bc4303bf448ab SHA-1: 1cc5d4d83bf2759d8d78e67c03fd34c32189e436 SHA-256: 89d30d04d294b02035a6510157d6de2d1dfe58fcaa67d3f6fbd8488ce0d1ceff
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://krisoc.ru/pbw?utm_term=download+gta+san+andreas+obb+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4368750/normal_60373eeb1d81c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420020/normal_60381be84cd87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413244/normal_602bf1181af85.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459467/normal_601c62ce3a304.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/208c0281-9275-4bc5-9b13-7f2a83c9fd7c/does_hagrid_die_in_harry_potter.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54823c33-688a-4281-b663-1affda6ea17b/37125995309.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/212d2c97-55cc-4bb5-ad61-a07fae92e436/touchstone_level_1_students_book_2nd_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bcc16f3c-8137-4466-88cc-3ae066be2bdc/a_static_budget_is_appropriate_in_evaluating_a_managers_performance_if.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a55f2433-4d1d-4a0c-948d-9e1cbb026700/sezukoduwusojorumapedo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78dc5a61-fb6e-41af-9651-a8df3acc5c5a/15004150959.pdfIn PDF document text
    • http://jojekepodef.pbworks.com/f/54301215814.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68f51dff-ed80-4dee-91ce-efc7965d4e53/kigebarosowiviwumojox.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/806bb96b-f1f7-47a8-9964-da3d2ed18382/how_do_you_spawn_a_bulletproof_car_in_gta_5.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f211dce8-954c-4b62-aeac-924516455938/legend_marie_lu_quotes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac951e11-5d80-4029-a7ff-7784c4f16623/sijogabadobajel.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/16c0b8d6-756b-492a-9b55-ab9a43afa2a2/wanozifumejolove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b21c57c1-256e-4d3b-909d-324ae6b55a01/86538590149.pdfIn PDF document text
    • http://natetusiwuwo.pbworks.com/w/file/fetch/144662187/landlord_sample_letter_requesting_certificate_of_insurance_from_commercial_tenants.pdfIn PDF document text
    • http://pimepovume.pbworks.com/f/ebalbharti_question_paper_10th_class_2020_ssc.pdfIn PDF document text
    • http://funuvutidip.pbworks.com/w/file/fetch/144469257/roman_numbers_1_to_1000_worksheet.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_off0000e6b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B5 5424 bytes
SHA-256: 48e208ff8fd0fed80d988a8e680d6972d23f759bcb6817d8dbcd8e0402bb5aed
font_01_sfnt_off0000f94c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94C 11252 bytes
SHA-256: d7a061b77c4a279e86cfd0a08d53908933b1843658e099a733e65197f6112189

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