Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d0d9799dc5e5b27…

MALICIOUS

PDF

69.8 KB Created: 2021-03-02 07:37:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 82b3af2af7c843687ee9fbbcc81bd946 SHA-1: 73b0ace40bd85907b3a8215aaa02f951d5b52bbc SHA-256: 8d0d9799dc5e5b2716d5e6f3d89df8e637bfcb660c16dbd427267464a4a1abe2
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://bologen.ru/wix?keyword=rme+fireface+ufx+2+manual PDF link annotation
    • http://xalisuvo.22web.org/smart_wristband_manual_svenska.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4502178/normal_5fe1792442db3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427519/normal_60210c066ae0b.pdfIn PDF document text
    • http://vaworudewu.iblogger.org/omron_digital_thermometer_user_guide.pdfIn PDF document text
    • http://jazesenebadajak.iblogger.org/4836292049.pdfIn PDF document text
    • http://maxidadikegi.iblogger.org/asrm_insurance_full_form.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452385/normal_6014e12bed6e7.pdfIn PDF document text
    • http://riwotivadejud.sportsontheweb.net/nafes.pdfIn PDF document text
    • http://bomufofo.iblogger.org/gopedi.pdfIn PDF document text
    • http://zupubovogigu.iblogger.org/71845224101.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kuxemozoxabonag.onlinewebshop.net/78791206605.pdfIn PDF document text
    • http://ketanuviz.epizy.com/30817711696.pdfIn PDF document text
    • http://jitoritobo.epizy.com/wojusumotiwaxaru.pdfIn PDF document text
    • http://sivakekixil.epizy.com/grainger_catalogue_free.pdfIn PDF document text
    • https://s3.amazonaws.com/doxifuba/cardi_b_video_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/bisazabe/letterhead_in_word_format.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/blender_2._8_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/buddhist_philosophy_a_historical_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/muwomapotumugi/puwereko.pdfIn PDF document text
    • https://s3.amazonaws.com/jedaxopopuko/karepemesase.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_off0000d563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD563 5056 bytes
SHA-256: 73c256e6072dfa38ee6cf94892edae512cb53351ec7e5ed423890e5e9c185dc7
font_01_sfnt_off0000e686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE686 10416 bytes
SHA-256: e716a87b7a642da603d5e12bd251940d675f7272e2227f1d7fd488688bf73a1a