Malicious PDF — malware analysis report

Static analysis result for SHA-256 6470e424d807009d…

MALICIOUS

PDF

74.9 KB Created: 2021-02-19 15:27:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8bdd76b055e248d7f6ee28a9f76ddad3 SHA-1: 77074041e9ec75c2fa0f23fd82b01dc414090a10 SHA-256: 6470e424d807009d549a96ab3cf8d1ad4c7e33a9ec6824982abdb727c7a2d153
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/123?utm_term=how+do+i+change+the+battery+in+my+viper+remote+start PDF link annotation
    • http://idealslim-ordina.site/86731101601vt5zm.pdfIn PDF document text
    • http://uscarins.info/debufufemutu84h.pdfIn PDF document text
    • http://apelsins.space/my_ambition_essay_in_english0vg83.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/K4hfifr/harvest_market_springfield_il_phone_number.pdfIn PDF document text
    • https://jobexukutet.weebly.com/uploads/1/3/1/4/131452991/8245453.pdfIn PDF document text
    • http://opensol.xyz/angry_birds_transformers_online_hack_generator_tooldq6lm.pdfIn PDF document text
    • https://mipajadotafev.weebly.com/uploads/1/3/2/8/132814286/597a2ef2f5.pdfIn PDF document text
    • http://trydouche.xyz/business_communication_today_courtland_l_bovee_john_v_thill19i99.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/padadutiseni/nadalamotegikodinanatupej.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/40_shipping_container_home_plans.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/95476521635.pdfIn PDF document text
    • https://s3.amazonaws.com/zazelujeju/serotokixejivijiteva.pdfIn PDF document text
    • https://s3.amazonaws.com/jawusawar/nordic_ware_baking_sheet_with_rack.pdfIn PDF document text
    • https://s3.amazonaws.com/xapijifas/bpmn_2._0_cheat_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/filidabut/xodepuj.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_off0000e7ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AD 5808 bytes
SHA-256: 460e6a54372db7a697b93b5af8416136873cb4f857aaaf2f3ec0d7a225c61f8a
font_01_sfnt_off0000fb65.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB65 10240 bytes
SHA-256: c6a3f5974b6f40bc805c7310cef0084e1c00971d6c5166131f8c4c103aadaabd