Malicious PDF — malware analysis report

Static analysis result for SHA-256 03cbf7720677cf1e…

MALICIOUS

PDF

73.6 KB Created: 2021-03-31 04:28:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ac45e70f2a5f3aee42e5c80822087f9e SHA-1: bd9d15c9c2e0b87571dd082050d68baefb8d603b SHA-256: 03cbf7720677cf1e997d039175fb14483aed1d42f5e5c496b1a484450b90e21d
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 0.9998

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://druttle.ru/award?keyword=abecedario+en+cursiva+para+imprimir+pdf PDF link annotation
    • http://peludofnor.fun/kevidogezuvuwirokudbxz9.pdfIn PDF document text
    • http://medway24.com/figojugujalowasesidq7ac.pdfIn PDF document text
    • http://richmaya.site/89854317563yyy7.pdfIn PDF document text
    • http://1freedom.space/ikea_twin_bed_sheet_setu07w2.pdfIn PDF document text
    • http://omshop.space/bees_saal_baad_movie_480ps1xvw.pdfIn PDF document text
    • http://insuranceautousa.com/2015_rav4_ownersoh3kw.pdfIn PDF document text
    • http://osmosiotzs.fun/zoom_505_ii_effects_listzfyfo.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/ec1fbab7-281e-4c90-a6d4-185d2839f098/sazivuwexape.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/cessna_turbo_210_operating_costs.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/97597745112.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/50065315429.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b6dd5e4-a282-436a-b431-05fe46809fcf/honda_eu2000i_generator_specifications.pdfIn PDF document text
    • http://dovikerafiw.rf.gd/history_of_food_adulteration.pdfIn PDF document text
    • http://gofudawaropuz.epizy.com/rom_android_9_mate_10_lite.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/5584676468.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/engineering_drawing_previous_question_papers_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/zeguv.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/present_continuous_examples_with_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/10161485757.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_off0000e26e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE26E 5460 bytes
SHA-256: f2800c8be0944e4c0df5efe747701d6d4e1645752186d5e92a0e4b54ac3d311e
font_01_sfnt_off0000f4ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4EF 10576 bytes
SHA-256: 373745f0013419a213a8a69e4b454fc658862bf75d59cbb0c3952dd976aab4c9

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