Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9e18abf799f432…

MALICIOUS

PDF

66.5 KB Created: 2021-02-18 20:48:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 90592b3870e48627f19bec9770f05890 SHA-1: 4a1e2049fd1189c8c0e6666efecc2f4f04c0d418 SHA-256: 0d9e18abf799f4321f5c69e3e8eedffdf9cacdd6756c55946ae526bf9c34b5c3
196 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
  • 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://jacksth.ru/wix?keyword=smoke+me+out+tour+2019+san+jose PDF link annotation
    • https://lonamejekewow.weebly.com/uploads/1/3/5/3/135396766/zivam_foridewusifezel.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465142/normal_5ffeb5771a24f.pdfIn PDF document text
    • https://cdn.sqhk.co/dalegoti/ieJ62ia/78075344935.pdfIn PDF document text
    • https://regenapewafixun.weebly.com/uploads/1/3/4/3/134364718/bcda9b3dd3.pdfIn PDF document text
    • https://kuvitoguke.weebly.com/uploads/1/3/0/8/130813837/ralamexi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377925/normal_5ff2722d161de.pdfIn PDF document text
    • https://weralafopibobal.weebly.com/uploads/1/3/4/3/134338927/garuxorizabijiw_zonivaxuxuv_saxidawibujereg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501479/normal_6022418cee2c8.pdfIn PDF document text
    • https://koxiguxizabi.weebly.com/uploads/1/3/1/1/131163763/645b661e1.pdfIn PDF document text
    • https://dowamodugepaxa.weebly.com/uploads/1/3/0/7/130739159/4903755.pdfIn PDF document text
    • https://xapitutas.weebly.com/uploads/1/3/0/8/130813648/panewafodutofotavane.pdfIn PDF document text
    • https://morutasatosode.weebly.com/uploads/1/3/4/3/134366393/7081374.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450147/normal_600397a379298.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/jinabom/22978354150.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/77562286607.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/car_game_karna_hai.pdfIn PDF document text
    • http://volajigatume.epizy.com/complaint_handling_policy_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/pusixa/17741147433.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_off0000c73e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC73E 5524 bytes
SHA-256: 82cd0256a1d3c5af93c4bab56f1f06e4055944fed051b97457f1edbedd2f64f8
font_01_sfnt_off0000d9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9EF 10140 bytes
SHA-256: 68af2de262e34fa6695f856f920efc01a28b66bf289fb49756e3464be5687b61

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