Malicious PDF — malware analysis report

Static analysis result for SHA-256 eebc51ce51201a0f…

MALICIOUS

PDF

79.8 KB Created: 2021-03-14 06:06:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9a11911b32dc8f5bd75cb2b3f06ae392 SHA-1: b3dbdcb1cc5cc854e1493a429f82d9d41e1d3ac6 SHA-256: eebc51ce51201a0f8ad171df426197e3c8609a5da4343484fc607a3c7d98ead8
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9994

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://ponafet.ru/award?keyword=encyclopedia+of+big+data+technologies+pdf PDF link annotation
    • https://cdn.sqhk.co/veludewozen/4dheehe/sononevoluvoxufonolanofe.pdfIn PDF document text
    • https://dodizavezoku.weebly.com/uploads/1/3/1/3/131398251/budurezowelumuxolo.pdfIn PDF document text
    • https://tajuzoliv.weebly.com/uploads/1/3/4/3/134359899/824565b.pdfIn PDF document text
    • http://vixifujugafafin.iblogger.org/35497773786.pdfIn PDF document text
    • http://lesalufijo.iblogger.org/does_korean_have_an_alphabet.pdfIn PDF document text
    • http://sfr-webmail.com/liwagivegopepenaluxu6jaji.pdfIn PDF document text
    • http://uplrezina.site/154027527697fa7u.pdfIn PDF document text
    • http://bluhgang.best/12_hsc_biology_textbook_downloadjq2ed.pdfIn PDF document text
    • http://paktum.pro/14424830464glvch.pdfIn PDF document text
    • https://pixadodo.weebly.com/uploads/1/3/2/7/132740612/fogizemuwogu.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/Ujegfjd/archer_and_olive_mystery_box.pdfIn PDF document text
    • https://dutukoviwu.weebly.com/uploads/1/3/0/8/130873875/6894828.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/2XKhdih/89054526962.pdfIn PDF document text
    • https://cdn.sqhk.co/minamojazi/djchehi/kenepukipix.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/0812fa8b-eb91-4226-977a-412c2aca40a3/fusapubukafeditifugofi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad17d187-cd8c-46c8-8e56-b52c6373b421/milositavadozibiw.pdfIn PDF document text
    • https://43cb2d18-1589-43a7-b1c5-fe1278e1c76d.filesusr.com/ugd/370b54_6efc7ad94e6647a694fb1a2c0b996290.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/8923ec5b-b387-40c8-b414-22d3a7321f79/pathfinder_kingmaker_what_classes_get_animal_companions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/afac2428-7570-43e0-ab75-ed6d5d0b384d/68366741252.pdfIn PDF document text
    • http://muduwabu.rf.gd/astrill_vpn_apk_cracked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/319e3d97-9112-4848-b704-b1468d602bba/12_ancient_egyptian_symbols_explained.pdfIn PDF document text
    • http://jisokewiw.epizy.com/nomab.pdfIn PDF document text
    • https://72b50e20-f79f-40ca-96b4-24bef83e308f.filesusr.com/ugd/1a1092_fd3b91fa28f2474d9437e88b6ff0ac77.pdf?index=trueIn 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_off0000f6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6BB 5520 bytes
SHA-256: 13ad89259b5f4cb85348bbd59254fd0bb578252239487d541c5dfd737a2ee5ec
font_01_sfnt_off0001098e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1098E 11232 bytes
SHA-256: 3ea101818daae72ce0356733682c229a435a5d91d0964cb6bda2f42d338bc969

Open this report in the interactive analyzer, or submit your own file for analysis.