Malicious PDF — malware analysis report

Static analysis result for SHA-256 bda71430e5ba44a5…

MALICIOUS

PDF

80.7 KB Created: 2021-02-25 14:45:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 551f6086796ba5dec0fee3562f2f6c0a SHA-1: 51e667a9a16d563ffc33aa787d104c80fca9e05c SHA-256: bda71430e5ba44a5baf21e4e091bb00c8cc1894a0191abfc304cf7f3c87bc387
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/123?utm_term=show+interface+ip+address+cisco+router PDF link annotation
    • http://fragcups.com/nc_dmv_permit_study_guidel8idg.pdfIn PDF document text
    • https://s3.amazonaws.com/dinisemowoge/strategic_business_plan_template_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/10948090261.pdfIn PDF document text
    • http://bhd-management.space/xonapewozopolemagarisuhjvc4.pdfIn PDF document text
    • http://fruit-ital.space/dorotesozugunazejubobo18epb.pdfIn PDF document text
    • https://cdn.sqhk.co/xidupesijij/YjjjhgN/zeus_dog_breed.pdfIn PDF document text
    • https://s3.amazonaws.com/mefonevimimix/plane_ticket_template_present.pdfIn PDF document text
    • http://gprofights.ru/tiduvupuralopokilibiwipedl3aqx.pdfIn PDF document text
    • http://snail-case.store/936922039129kf75.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/54242437399.pdfIn PDF document text
    • https://s3.amazonaws.com/wujixus/bsc_magazine_april_2019_free.pdfIn PDF document text
    • http://feedbacrnz.space/85318635845nn6i6.pdfIn PDF document text
    • https://cdn.sqhk.co/lagolipumepi/gggcjhN/thanksgiving_dessert_ideas_for_diabetics.pdfIn PDF document text
    • http://poroda.site/super_tank_rumble_hack_generators5nen.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/special_derivatives_cheat_sheet.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ff6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF6C 5404 bytes
SHA-256: 70732c3f6db911c60891ac786298f7ee4849ec06bedab419873feae7f3545fd6
font_01_sfnt_off000111d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111D8 10588 bytes
SHA-256: bb0b5891bbeee60f374c6bdf843f2fa09b3e3cf14b445e3ffec726fd47667120