Malicious PDF — malware analysis report

Static analysis result for SHA-256 29e1ceb51b878fd6…

MALICIOUS

PDF

70.7 KB Created: 2021-02-16 05:12:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c2d00305ce04c0ee713006cca1c79bee SHA-1: ce18b09c7c42ddd4e21078a8f86a306e70e0af0f SHA-256: 29e1ceb51b878fd60ba2a6844ac19526cbeac59f3feda9f9697f1b1be8f7050a
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=speak+discussion+questions+answers In PDF document text
    • http://leopolds.space/cardiopatia_hipertensiva_diagnosticopspjg.pdfIn PDF document text
    • https://cdn.sqhk.co/teposodigar/jjc48aw/36215840924.pdfIn PDF document text
    • https://cdn.sqhk.co/ludozenidi/d5jcJgg/9349876950.pdfIn PDF document text
    • https://cdn.sqhk.co/nokotadi/drhdjaT/loopnet_newark_nj.pdfIn PDF document text
    • http://ejqy.com/32801912808h81co.pdfIn PDF document text
    • http://usacarins.com/472313051493da15.pdfIn PDF document text
    • http://reweder.site/jiwasotadodad1gw02.pdfIn PDF document text
    • http://usesol.xyz/como_cerrar_manualmente_el_quemacocosnh28u.pdfIn PDF document text
    • https://tugojomabam.weebly.com/uploads/1/3/4/5/134588125/5949958.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/janodojivi/92402302601.pdfIn PDF document text
    • https://s3.amazonaws.com/dorobukasawituw/hd_bokeh_background.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/blitzkrieg_2_updates_s.pdfIn PDF document text
    • https://s3.amazonaws.com/dazinibonofobi/android_x86_iso_usb_boot.pdfIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/macro_to_duplicate_sheet_in_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/davozeji.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/larupufarawenumezunijisep.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_off0000d8f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F2 5420 bytes
SHA-256: 8897b04ddb034c975c0c622544e526618c59e9f7b4ec948eed3571da362dbed9
font_01_sfnt_off0000eb7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB7E 9988 bytes
SHA-256: fee4e9abb2011ac19b9916466e2903f406af897ffc52bb9c7e26d47dfd954b70

Open this report in the interactive analyzer, or submit your own file for analysis.