Malicious PDF — malware analysis report

Static analysis result for SHA-256 3229f780010d7893…

MALICIOUS

PDF

72.2 KB Created: 2021-03-10 07:29:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: a27b9518fd2c3a9707da81d2ddf70827 SHA-1: 9a39dc3c721bc1fa8f4ba3f3f5df9c5a90c35073 SHA-256: 3229f780010d7893e873f7137643b9bade90c29108ca8daa2c1cd6535692f539
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to product parts, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/wb?keyword=bonaire%20evaporative%20cooler%20spare%20parts PDF link annotation
    • http://ital-tess.space/airborne_death_from_above_t_shirts6fl1w.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369518/normal_5ff5b059d5a95.pdfIn PDF document text
    • http://azorocheat6.xyz/how_tall_are_hurdlesjqvkw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458144/normal_600632e8b13e2.pdfIn PDF document text
    • http://afracheat7.xyz/4763112515620sv7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500882/normal_6027bd4165afa.pdfIn PDF document text
    • http://bestgirl69.com/61824872114hiqng.pdfIn PDF document text
    • http://italylife.pro/2507225149pdkr9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420775/normal_5fc8a2947940c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/garorowa/bsl_shaders_1._12.pdfIn PDF document text
    • http://rinulufonimilo.rf.gd/throne_of_glass_series_order_of_books.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/hcpl_316j_500e_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/nonparametric_statistical_inference_5th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed14e378-a9fa-498d-9104-922e0dc4865b/25014758580.pdfIn PDF document text
    • http://pifutujotot.epizy.com/47907362038.pdfIn PDF document text
    • https://s3.amazonaws.com/wefadep/drivers_log_book_template_free.pdfIn PDF document text
    • http://fipokaf.epizy.com/3d_chip_free_softonic.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a9467a7-c074-4449-9731-9cd48644ea90/hunger_games_catching_fire_cast.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e66657fb-4457-4c95-82b4-466ca6425515/what_are_the_roles_in_scrum_team.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fd3d158-4dcf-4783-8294-4093815e7cef/80153171070.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/noruboliwurov.pdfIn PDF document text
    • http://valaweno.rf.gd/wikapozobutuwa.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_off0000de61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE61 5036 bytes
SHA-256: 4043dda956801f20c863cb6ae86a41f676a9dcbb19d831467a72f1e349f9987f
font_01_sfnt_off0000ef96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF96 10560 bytes
SHA-256: 1dc68a093d393cced6a1f11583092aaff86160fabaf144be5afabe109646c6c7

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