Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9bee1d8ebf60c02…

MALICIOUS

PDF

86.5 KB Created: 2021-03-22 12:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 23c0c53038e12d2709a7630d8d53ef9a SHA-1: 1538c291c9c230f8de39203bd8b6c535252d270c SHA-256: f9bee1d8ebf60c02e16049a1888fe10eb395ce2f9a15c00d191153247067e719
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-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://jottigo.ru/wix?keyword=mayflower+worksheet+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4421049/normal_6032f1278206d.pdfIn PDF document text
    • http://online-bestshop.xyz/94173790755duvbv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417318/normal_604844b35ed9a.pdfIn PDF document text
    • http://lnstagramsupportlives.com/download_marshall_mathers_lp_2_free7wb8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489725/normal_60305ecde7bb2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420030/normal_602629460f29d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387050/normal_60265636007ba.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/479fde87-7a0b-4f7f-8ec6-c4b922b364c9/teoria_del_conflicto_trabajo_social.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/423bbac3-c7c2-442a-8aa8-25150a404c2f/what_size_is_polaroid_600_film.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b587884b-19ad-4030-bd91-e23df8f910d3/21883735707.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2e2ab7c4-ea0b-48bb-8be1-f241fcd4d842/what_happens_when_tectonic_plates_move_past_each_other.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/kebitoja.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/37eddcec-8093-4311-b44d-270f119ddd31/mukivosanose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/809d3744-c91b-466f-960f-bc4077852a0b/lust_by_susan_minot_thesis_statement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fc63b1ee-a8eb-41ae-a246-d7d34cf2fd1e/how_to_use_a_sharp_calculator_for_fractions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6536fa3b-7b23-4de0-ad07-bff96b41a62a/vitamix_immersion_blender_sale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d90cbe18-98a4-4007-a3c1-c5b51936b2ab/91265269260.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/35176602710.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23109cc1-0dc2-4181-a133-c36af6a568d9/are_court_cases_italicized_chicago.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 4

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF4E 5392 bytes
SHA-256: ac324c7c2dcd37a0ab891411e7304367f3a1ba7bd816bed1ae91f109803c9165
font_01_sfnt_off000111c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111C8 10796 bytes
SHA-256: 16a5be3f30ad6b9810d37403397d34191b6ad74b174d8b874038c76e9ee1a487
font_02_sfnt_off000136d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136D3 16272 bytes
SHA-256: 5b2d093a7121c53b311e80ae0ebc8974df22647004f6de23ed93d0efea417342

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