Malicious PDF — malware analysis report

Static analysis result for SHA-256 56a9313c7a9bfd65…

MALICIOUS

PDF

77.9 KB Created: 2021-03-16 23:38:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 3aa0ce7a8af9c8f613e3d0b6088b12c2 SHA-1: c3b783fd49dd530b0f17856a8b7b5c570c064c59 SHA-256: 56a9313c7a9bfd65ee85701bc42766360e175a6a3ca44d0dcdbae8aad628dd91
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating it is a phishing lure, specifically using an image to trick users into clicking a link. The primary URL identified, 'https://botokaw.ru/wix?keyword=order+picture+canvas', is flagged as an SEO redirector, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs strongly suggest malicious intent, likely to lead the user to a credential harvesting page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://botokaw.ru/wix?keyword=order+picture+canvas PDF link annotation
    • http://salonop.xyz/994688991190uhrc.pdfIn PDF document text
    • http://arboozfilm.com/wedding_invitations_templates_in_marathi0zsc7.pdfIn PDF document text
    • http://rafale.store/tenogobukusarejesogebuxpjx.pdfIn PDF document text
    • http://hushseo.online/gedejunolibipatozisotakag2hgu.pdfIn PDF document text
    • http://drive4mclaneaustell.com/35914449214ruxfp.pdfIn PDF document text
    • http://swiss-gear.shop/first_grade_learning_games_app_free3yr69.pdfIn PDF document text
    • http://vashastrahovka24.ru/gejadikitebaraxuruch6.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/tinezedu/zafewobitamulu.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/44978413775.pdfIn PDF document text
    • https://s3.amazonaws.com/mujevubutukoxu/bollywood_songs_free_hd_video.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/68858854155.pdfIn PDF document text
    • https://s3.amazonaws.com/xurixado/musonevomuzobepepebilisun.pdfIn PDF document text
    • https://s3.amazonaws.com/veledabejufi/nevaruloku.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/minecraft_anti_world_er_plugin.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/calvin_and_hobbes_books_amazon.pdfIn PDF document text
    • https://s3.amazonaws.com/zuvovoxigumuz/zakoxunuravavujamupe.pdfIn PDF document text
    • https://s3.amazonaws.com/votuweroxigezog/how_do_i_reset_my_honeywell_smart_thermostat.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/transit_anna_seghers_der_arzt.pdfIn PDF document text
    • https://s3.amazonaws.com/vuxagixil/atmosfx_3dfx_form_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/elementary_geometry_for_college_students_7th_edition_amazon.pdfIn PDF document text
    • https://s3.amazonaws.com/rurosaveruk/walt_whitman_mall_huntington_restaurants.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_off0000f340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF340 5120 bytes
SHA-256: 59fa9f9163f719c560670e5d11da0edd9f7e0e43d353c7c576a1c079c022651d
font_01_sfnt_off000104bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104BC 11132 bytes
SHA-256: 6b693128cbb0be60d7ac62d6e36e34ed7e8c751832cd504f10cc0f61a324be46

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