Malicious PDF — malware analysis report

Static analysis result for SHA-256 5168e46c1351028b…

MALICIOUS

PDF

73.2 KB Created: 2021-02-12 02:40:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0c1c05d0d8b93702c8bbc3873523a11e SHA-1: 2947a2fbb3065c07c21267ccc449431671da82ea SHA-256: 5168e46c1351028b60cd6249c541a4353871d4d12c6a88fefb1318ba0dd5ac8d
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wix?keyword=the+kingdom+of+agarttha+pdf PDF link annotation
    • http://amorexpo.com/naruto_shippuden_ultimate_ninja_impact_android_apk4k349.pdfIn PDF document text
    • http://aazzzry.space/terminator_dark_fate_full_movie_dailymotiondevrz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389599/normal_600ff2baa7593.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489429/normal_5fc655b671501.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367650/normal_6014b00a91341.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468837/normal_6018e43e19a8f.pdfIn PDF document text
    • https://xabesokexiba.weebly.com/uploads/1/3/4/3/134327988/3083530.pdfIn PDF document text
    • https://dukinuvofipul.weebly.com/uploads/1/3/2/7/132711936/90537137eaa6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381095/normal_5ffc12d15d9df.pdfIn PDF document text
    • https://zafatuxowusetex.weebly.com/uploads/1/3/0/7/130739053/a347026e1b.pdfIn PDF document text
    • https://demimawuna.weebly.com/uploads/1/3/5/3/135389973/1032984.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/jotogorurekuro/st_nicholas_chantry_school_uniform.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/honeywell_homexpert_digital_thermostat_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kuxegu/xediduzuradez.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/watson-_glaser_critical_thinking_skills_test.pdfIn PDF document text
    • https://s3.amazonaws.com/jidagafinuxesu/registration_form_template_free_in_html.pdfIn PDF document text
    • https://s3.amazonaws.com/lemerisinivum/design_rules_for_3d_printing.pdfIn PDF document text
    • https://s3.amazonaws.com/dogazisuze/17283991513.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/18278113406.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/moxemumevatazezeguvol.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_off0000e2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BB 5256 bytes
SHA-256: 880918669fdb4e4ad27244ec3f9fbb35bdcc448d67c1a43967b7f95cb7802e0e
font_01_sfnt_off0000f476.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF476 10280 bytes
SHA-256: 5684448fa8cc24872c36e951c5fa9705ca71be7dd0ff415612b451365c0f84b0

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