Malicious PDF — malware analysis report

Static analysis result for SHA-256 0872b795526356af…

MALICIOUS

PDF

75.2 KB Created: 2021-02-15 07:25:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 36b70ce4dff5f6e27cdacd3e0542198a SHA-1: 196cbdaed4f5c88e5cf90189c024cd7391bb18e3 SHA-256: 0872b795526356af9bf5c142a7f9834cfae6306dcebe336488c8f1469768ef85
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/123?utm_term=seneca+valley+high+school+football PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4464734/normal_60094cde3f593.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489843/normal_5fce4a474e043.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407576/normal_5ff28cfbec8bf.pdfIn PDF document text
    • http://instacopyrightcenter.com/cdr_file_to85ovl.pdfIn PDF document text
    • http://zobevewobuka.22web.org/interactions_1_grammar_answers.pdfIn PDF document text
    • http://lady-bug.club/laxadutubudipefitadumaj1dfb.pdfIn PDF document text
    • http://gemobaraza.iblogger.org/declarative_and_imperative_sentences_worksheet.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411228/normal_5feec0aec1a7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4493209/normal_5fd2ff115ade7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383451/normal_60232eafdb013.pdfIn PDF document text
    • http://bijopesenof.iblogger.org/86558798794.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365608/normal_5fdb962d3c1d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464311/normal_6013324829d87.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bisidajidosetuj.rf.gd/free_letter_e_preschool_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/diwitapezu/55965497416.pdfIn PDF document text
    • http://zejagal.rf.gd/antalya_city_map.pdfIn PDF document text
    • http://niserikotul.rf.gd/18206460931.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/priority_matrix_template.pdfIn PDF document text
    • http://roparewuna.rf.gd/mitemifevax.pdfIn PDF document text
    • http://jilovin.epizy.com/dashboard_psd_templates.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_off0000e8a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A8 5452 bytes
SHA-256: 662c881904f47b6541f6b51fedc03bee820fe43ac1890a2017dfba67a71c9bcc
font_01_sfnt_off0000fb46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB46 10456 bytes
SHA-256: be1db8446870c729c9d271af987c566f2e4116ce4a91fe49c791f6d84d80239d

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