Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4f25d824e378e86…

MALICIOUS

PDF

76.6 KB Created: 2021-05-03 00:36:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: f72a1f215e7f768c01c47f1400a3b488 SHA-1: da42d575c80cc120f75ba528c70c5293b9c77bec SHA-256: d4f25d824e378e861a4a7f10560babdb84217c8bfc4f305a8cbe1e0333d693e2
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high probability of malicious intent. The PDF contains embedded URLs that redirect to external sites, one of which is a known malicious domain. The document body, though heavily obfuscated, appears to contain product-related text, suggesting a lure for phishing or malware delivery. No scripts were extracted, but the presence of multiple suspicious URLs points to a redirection or download mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://leonvi.ru/strik?utm_term=samsung+bd-j5700+blu-ray+disk+player PDF link annotation
    • http://rowowesofazov.medianewsonline.com/ludevofuneme.pdfIn PDF document text
    • http://poroda.site/pano2vr_5_cheios_megaeoye0.pdfIn PDF document text
    • http://elinekici.online/how_to_install_first_alert_smoke_and_carbon_monoxide_detector65mu7.pdfIn PDF document text
    • http://gozaped.iblogger.org/what_was_camp_x_ww2.pdfIn PDF document text
    • http://kapabifidi.sportsontheweb.net/13577754558.pdfIn PDF document text
    • http://dukofinezamidol.22web.org/jizuvokikotisuze.pdfIn PDF document text
    • http://prodive.su/house_of_night_novels_book_order1la3j.pdfIn PDF document text
    • http://nopufejumimub.22web.org/dugakeviwa.pdfIn PDF document text
    • http://itawegan.space/rounding_decimals_to_the_nearest_10_worksheet6ahnh.pdfIn PDF document text
    • http://best-ital.fun/wabojepe7ea.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/roxawo/crowdstrike_earnings_report_date.pdfIn PDF document text
    • https://s3.amazonaws.com/xunilukegez/46318548576.pdfIn PDF document text
    • https://s3.amazonaws.com/sefukirexuwekij/59775244793.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/80100848031.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/danby_air_conditioning_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/vonuxagupeduze/animation_software_free.pdfIn PDF document text
    • https://s3.amazonaws.com/tokatefozude/velalufavurafigajofu.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/fumepulopikulijitewan.pdfIn PDF document text
    • http://jutagejefutix.atwebpages.com/57563747616.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/9apps_install_2018_games.pdfIn PDF document text
    • http://tojederetesez.epizy.com/luzaj.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/introductory_functional_analysis_with_applications_solutions.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/5_why_accident_investigation_examples.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_off0000ebf3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF3 6144 bytes
SHA-256: 3c92d339f0ad828b4303299cfa38a0f3499d0543a3f431edd88df08dbe287ad1
font_01_sfnt_off000100d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100D6 10520 bytes
SHA-256: 3e7f09b1c5116d11cca28b0f8b8edfd550dd78013477e2be7e22e3fbb510126b

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