Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fcca55f7c7b637e…

MALICIOUS

PDF

79.3 KB Created: 2021-02-15 14:49:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d73046d5b0769f3aa5e679836ee5e288 SHA-1: eb6efdd12a356a95136216bfb2b657ecb8a03724 SHA-256: 2fcca55f7c7b637ee3a8dd12206e43e04deedad217bd174f8ebb9c1cac37e474
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://baarspo.ru/strik?utm_term=how+much+do+certificate+programs+cost PDF link annotation
    • http://dirtygirl.fun/google_chrome_for_windows_vista_free2obsy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463532/normal_60241a911f307.pdfIn PDF document text
    • http://lnstagramverifiedsbadgesforms.com/chamatkar_film_videow4w0k.pdfIn PDF document text
    • https://cdn.sqhk.co/pikevasoze/aOKijhe/hexion_louisville_ky.pdfIn PDF document text
    • http://securityverifiedservices.com/neo_geo_pocket_games_on_switchi6zaz.pdfIn PDF document text
    • http://yazansoft.com/kolaluniwuturwqse0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447880/normal_5ff0483e3e04b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384154/normal_600446c721495.pdfIn PDF document text
    • https://cdn.sqhk.co/wowasuperan/iawgiIo/tolekaxawelup.pdfIn PDF document text
    • http://patokog.22web.org/pafumututokokajad.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/interpreting_scatter_graphs_worksheet.pdfIn PDF document text
    • http://kazoverowagodi.epizy.com/pink_linen_sheets_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/3806647930.pdfIn PDF document text
    • https://s3.amazonaws.com/gavapozalilup/mumbai_rains_latest_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/spoken_english_course_online.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/99220460351.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/zosojusukuwasetotejen.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/fopafomokujuxuvewe.pdfIn PDF document text
    • https://s3.amazonaws.com/jaxesabi/american_action_movie_s_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/get_3_form_of_verb.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ebff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBFF 5364 bytes
SHA-256: a60aa715c738fd7078c5bc6b67cbf09979cc3449b3f9705835d5d940a7031756
font_01_sfnt_off0000fe4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE4D 10284 bytes
SHA-256: 3eef8d45f24433f2070aebc1d7afe8b0ea2e25bbcbff68d6ba943f6a2fc7a90e
font_02_sfnt_off00012181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12181 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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