Malicious PDF — malware analysis report

Static analysis result for SHA-256 1268d47086f3adaf…

MALICIOUS

PDF

74.4 KB Created: 2021-02-02 01:44:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 37bdfd991162919c2e3eb2256441f934 SHA-1: 8815b2d114d09858d9a168eacdd752a961f6e2fd SHA-256: 1268d47086f3adafc1547e85bf08346752cca27af732409cfe5a8bf66979f0bb
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wb?keyword=oware%203d%20game%20download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4489035/normal_6002027851313.pdfIn PDF document text
    • http://blog-millionaire.buzz/tevibinadevewirupukupb00ar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452376/normal_6002932a0a76a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419198/normal_600e6a5389baf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428335/normal_5fc5be4b8204e.pdfIn PDF document text
    • http://idealica-ufficialeitalia.website/vujujarubaris1z931.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4497095/normal_60171e0fe76ac.pdfIn PDF document text
    • http://nout-prokat.website/wamaxevelujizuwezarojijuzj51np.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/rJgdiew/how_to_train_a_jumping_spider.pdfIn PDF document text
    • http://mihetos.xyz/43128225574zq2dc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410204/normal_5fc9c793a7191.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465691/normal_5fd15d0bdee43.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410679/normal_600c29cd34f62.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/saxefi/hse_dashboard_excel_templates_free.pdfIn PDF document text
    • https://s3.amazonaws.com/vapelurowar/classic_nursery_rhymes_lyrics.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_off0000e843.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE843 5252 bytes
SHA-256: 09af7922c84fd65dbe9dd6191adff7705a49fc4786cb14d35e6d299b07062023
font_01_sfnt_off0000fa19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA19 10212 bytes
SHA-256: 6e4072b1dcc8d3b03960991f209d87557b3865276f9912108298c16174937be8