Malicious PDF — malware analysis report

Static analysis result for SHA-256 02569977c7453951…

MALICIOUS

PDF

63.0 KB Created: 2021-02-23 19:16:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4f45179b9784a45cd1df6bcdb809f633 SHA-1: 50adfcf5a3249d2f03ee32c27d71e474e7ca1aa5 SHA-256: 02569977c7453951dc6c5abe938c09b94f4706eccbb55c244db44f89b6827d09
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/wb?keyword=la%20la%20land%20mia%20and%20sebastian PDF link annotation
    • http://pafugiwerokamez.iblogger.org/pobuwix.pdfIn PDF document text
    • https://bowutemol.weebly.com/uploads/1/3/4/2/134234741/21d07024d5.pdfIn PDF document text
    • https://gozivuwedigati.weebly.com/uploads/1/3/4/6/134612943/9670641.pdfIn PDF document text
    • https://givadebar.weebly.com/uploads/1/3/1/4/131437750/gotanas_xopoxixosev_pasele_wakiko.pdfIn PDF document text
    • https://pigiwikabulate.weebly.com/uploads/1/3/1/8/131856715/raperololujeji.pdfIn PDF document text
    • http://reguvixelupuj.iblogger.org/quran_with_translation_book.pdfIn PDF document text
    • http://lupaper.22web.org/92822152817.pdfIn PDF document text
    • http://bijipejip.iblogger.org/1406459156.pdfIn PDF document text
    • http://tadenexibegujam.22web.org/is_ford_explorer_expensive_to_maintain.pdfIn PDF document text
    • https://cdn.sqhk.co/gowamojon/j6hesii/gikevap.pdfIn PDF document text
    • https://dedidebu.weebly.com/uploads/1/3/2/7/132740692/1d1f6c7c451.pdfIn PDF document text
    • https://jacksth.ru/wb?keyword=la%20la%20land%20mia%20and%20sebastian's%20theme%20tabPDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/madinabu.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/city_building_games_apk_mod_offline.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/53734317555.pdfIn PDF document text
    • http://dovudegumigisaw.rf.gd/reading_plus_answers_level_e_african_adventure.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/9256706041.pdfIn PDF document text
    • https://s3.amazonaws.com/gurupixabogivaz/48085996477.pdfIn PDF document text
    • http://josilofogi.rf.gd/t_shirt_website_template_free.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_off0000ba09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA09 5084 bytes
SHA-256: 2f8f44c436f34f1730de8320f4d611b2718fe633875c394ee0eb88cb346a4514
font_01_sfnt_off0000cb30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB30 10372 bytes
SHA-256: 1a00e7ce989042f7974be4bec13bffb291671269bd0c47d7bc40cd37df4f068b

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