Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0109d0df6acfc9f…

MALICIOUS

PDF

67.6 KB Created: 2021-01-26 14:18:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 974b0485a953f1b0ca267455f8fe7b5c SHA-1: a8005d70b376565056278c2b0b6665604a7c4209 SHA-256: b0109d0df6acfc9f2d087d52c1d7a826271d1ecd6a3f66723f6bbe3e1b0a14af
96 Risk Score

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 URL that mimics search results, likely to trick users into clicking it. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to malicious content or download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/wb?keyword=unicorn%20pet%20wizard101 PDF link annotation
    • http://natur-green.fun/debepalivaluwagevofu2g7g5.pdfIn PDF document text
    • http://help-ruleviolation.com/weather_forecast_satellite_map_europeg0rm0.pdfIn PDF document text
    • http://koreanluxe.com/london_fields_2018_full_movie_online_free2xozx.pdfIn PDF document text
    • http://replyua.site/82445052888q6fjz.pdfIn PDF document text
    • http://meine-gebuhrenfrei.com/spirit_halloween_hours_thursdayscwr7.pdfIn PDF document text
    • https://cdn.sqhk.co/pulafefer/ifghGie/war_of_the_worlds_cast_bbc_2019.pdfIn PDF document text
    • http://blue-tick-central.com/20918876643o2cvm.pdfIn PDF document text
    • http://zdsshop.top/10490929756nhfuw.pdfIn PDF document text
    • http://unreguezff.rest/91778781209hh0g9.pdfIn PDF document text
    • http://minuette.me/98790130281zbcdv.pdfIn PDF document text
    • http://leomannapov.com/msp_codes_2020_unusedy2gjd.pdfIn PDF document text
    • http://mazers.fun/screen_lock_time_password_free_download08x5w.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/mutirexa/27227824410.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/atherosclerosis_symptoms.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/zijedatadopubaxuv.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/figijexamarufedobil.pdfIn PDF document text
    • http://dupumimegijema.epizy.com/california_wildfires_news_report.pdfIn PDF document text
    • https://s3.amazonaws.com/mudurixo/6411586403.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_off0000cc98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC98 5184 bytes
SHA-256: 329e6ef4db161ffbcb040963636583245024a1a7600cbbb240793865158cf1fb
font_01_sfnt_off0000de73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE73 10332 bytes
SHA-256: e9435d20c662176cf197a3a8ab1aa0c42ff4792e7de7f258302497e8a8ec45da

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