Malicious PDF — malware analysis report

Static analysis result for SHA-256 468ced215f06d843…

MALICIOUS

PDF

71.1 KB Created: 2021-03-04 09:44:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b17d105bb8921e8d002d3c123d742437 SHA-1: 82689af02435d7a72f6f1fa112c791669220163e SHA-256: 468ced215f06d84368a71e6c18a078ff37c2870c6b3caea6b2335fe3cbab17a0
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/wix?keyword=blockheads+2+player PDF link annotation
    • https://cdn.sqhk.co/jivazufevi/o9mjjbz/xebitokifosowikodugexizu.pdfIn PDF document text
    • https://rajarajo.weebly.com/uploads/1/3/1/3/131398110/fd40d98a892aa.pdfIn PDF document text
    • https://tewifevorifoja.weebly.com/uploads/1/3/4/3/134387655/zejaxavomep.pdfIn PDF document text
    • http://glasshookahcatering.com/pebajavejadiwudujetexil6982l.pdfIn PDF document text
    • http://magazinrf.xyz/367507159650gz4s.pdfIn PDF document text
    • https://fopepusev.weebly.com/uploads/1/3/1/3/131383694/fakobejobupaza.pdfIn PDF document text
    • https://lilepixot.weebly.com/uploads/1/3/4/4/134462463/duzujinexelupen_kuxirite_fasejutip_bijozuwudo.pdfIn PDF document text
    • https://jixejuterekafiw.weebly.com/uploads/1/3/4/5/134508928/32feec9031c.pdfIn PDF document text
    • https://toruganaduloxo.weebly.com/uploads/1/3/5/3/135347606/ruvub-nefevalokumoke.pdfIn PDF document text
    • http://legendnat.space/garrett_gta_500_manualz14ku.pdfIn PDF document text
    • https://gutirevenomosub.weebly.com/uploads/1/3/5/4/135400373/kezavusopidex-riduturafo-guwurekodo-fuderosoladebed.pdfIn PDF document text
    • https://serekarivevug.weebly.com/uploads/1/3/1/4/131407867/bulafitetodezo.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/degagaziv/faleki.pdfIn PDF document text
    • https://s3.amazonaws.com/jazuravazaguz/vokinetowixatojurewuba.pdfIn PDF document text
    • https://s3.amazonaws.com/sejakopa/51110175816.pdfIn PDF document text
    • https://s3.amazonaws.com/winumigutam/how_to_download_gta_5_on_xbox_one_for_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/que_es_el_pragmatismo_y_ejemplos.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/8302803437.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_off0000da10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA10 5508 bytes
SHA-256: c6ca3e129287deb782a61b7f06c2985b3141d7828c34c6048d57e68be305330d
font_01_sfnt_off0000ecd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD3 10092 bytes
SHA-256: c7b42c8bf9ac1a60a038d02830aaa2456d3dc4c9d31d43860e2438b3c8b91496

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