Malicious PDF — malware analysis report

Static analysis result for SHA-256 0466a26d27f06259…

MALICIOUS

PDF

72.2 KB Created: 2021-05-19 08:53:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: d334c4db0573b915b174d697fa615815 SHA-1: 9d611126d2dd9029f431e203178826c8d124c957 SHA-256: 0466a26d27f06259a2227af8548455c9a08d3a6306ebdb29777fa667f6e39bd5
156 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 a large number of external links characteristic of an SEO link farm. 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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://soxebez.ru/strik?utm_term=gt+aggressor+pro+dimensions PDF link annotation
    • https://degetopej.weebly.com/uploads/1/3/4/7/134727915/naturetazivolus-jujazekoxotamek-pigudijudo.pdfIn PDF document text
    • https://gixinizolovuz.weebly.com/uploads/1/3/5/3/135348456/6031056.pdfIn PDF document text
    • https://dixapixukezawe.weebly.com/uploads/1/3/5/3/135388261/a548ff.pdfIn PDF document text
    • https://vevikonupefafo.weebly.com/uploads/1/3/5/3/135391347/burisitagozikakezun.pdfIn PDF document text
    • http://tapalofaxag.22web.org/node_js_book.pdfIn PDF document text
    • https://sajadarazaga.weebly.com/uploads/1/3/4/3/134340855/b19f5801.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/94f8ef35-bbd1-4b0a-8e7c-0ad4c79994bc/escuela_psicologia_conductista.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f851e327-c16c-4fd3-bad7-1c3aff6ea500/moxalevelu.pdfIn PDF document text
    • https://s3.amazonaws.com/loxopudizus/english_grammar_worksheets_for_grade_7_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/mole_conversion_practice_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46883671-f79a-4e4f-8f2d-47a21a400d5b/98806918502.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzufexarevima/xuvikuniluguna.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/shaw_academy_app_for_pc.pdfIn PDF document text
    • http://fukibas.epizy.com/salary_of_aircraft_maintenance_engineer_in_emirates.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/zexagobigoronam.pdfIn PDF document text
    • http://pinijinubeseza.rf.gd/alphabet_bingo_game.pdfIn PDF document text
    • https://s3.amazonaws.com/tomaxade/driver_printer_brother_dcp-_1510.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/677221d5-484d-4bfa-81c8-e6e5fbf8d242/should_i_read_malazan_book_of_the_fallen.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/taco_bell_nacho_supreme_price.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/control_systems_engineering_by_i_j_nagrath_and_m_gopal.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/vasilavokabupisunomar.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFD 5276 bytes
SHA-256: 2973001cb3fed9eba72eb2769ef42686877f9b55773f9a401242b622b0e2802f
font_01_sfnt_off0000eddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDDF 10540 bytes
SHA-256: d97bb4494eaf7d6d1bb98de1192ae90e3bdab4b98ae2db97ca01fd0bb8e83a86

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