Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ce0baa7e61ea8fc…

MALICIOUS

PDF

72.1 KB Created: 2021-02-24 22:58:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 97465e97db3ed47d07057882194c1caa SHA-1: 9feb6daae704004993660ab1ebeba3ebf0132272 SHA-256: 2ce0baa7e61ea8fccbd690b56401fd52e566c4cef2c1cf0fd6a6e95906e9fbe6
254 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
  • 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=google+sites+sharing+and+permissions In PDF document text
    • https://jupurelapuloful.weebly.com/uploads/1/3/3/9/133997255/457eb0f.pdfIn PDF document text
    • http://pogawubujogeje.mypressonline.com/how_to_unclog_your_vacuum_hose.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/wusobotikimevatalapum.pdfIn PDF document text
    • https://pakurematumomu.weebly.com/uploads/1/3/4/7/134764434/vifipazike_libito.pdfIn PDF document text
    • http://sevezor.scienceontheweb.net/41735233977.pdfIn PDF document text
    • https://tunoworuv.weebly.com/uploads/1/3/4/0/134017870/8373678.pdfIn PDF document text
    • http://xitabijasava.getenjoyment.net/aqualink_rs4_troubleshooting.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/genijusemu/balizemopexo.pdfIn PDF document text
    • https://s3.amazonaws.com/viboxikuz/2777023869.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/20645444326.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/welinaredaxivajedatomiti.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/fipesokinetozifugo.pdfIn PDF document text
    • https://s3.amazonaws.com/fekife/arijit_singh_new_song_video.pdfIn PDF document text
    • http://lojabupabavize.onlinewebshop.net/compact_showtime_rotisserie_and_bbq_oven_accessories.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/osrs_varrock_medium_diary_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tazibabebamep/potokutobuvusomekeru.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_off0000de0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE0B 5404 bytes
SHA-256: d3ef404dff77dd58ff8b9eefbc22db81a054c2aab542551e598fb07bbfc7b314
font_01_sfnt_off0000f044.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF044 10304 bytes
SHA-256: 9d5841b631aac9c9d192910fcbb9e629156f47fc03b66259dcb5c3f2448d960a