Malicious PDF — malware analysis report

Static analysis result for SHA-256 f97b3fb30c2a989e…

MALICIOUS

PDF

76.0 KB Created: 2021-02-16 18:48:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c7466302075853fa6b7dfda403f2a7a3 SHA-1: 7e7de1f3c907f607f74ad707973ee564c67e1142 SHA-256: f97b3fb30c2a989e863869856bf205dc3daee3036e70514ade880664df204335
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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://yafferge.ru/strik?utm_term=doraemon+movie+stand+by+me+2+trailer In PDF document text
    • http://arevakar-travel.com/schlage_camelot_deadbolt_lockcepto.pdfIn PDF document text
    • http://prognoz-football.club/621537719665iany.pdfIn PDF document text
    • http://vehicleinsusa.com/253372709387wsrq.pdfIn PDF document text
    • https://zogadinarele.weebly.com/uploads/1/3/1/4/131409244/valat.pdfIn PDF document text
    • http://wbigs.space/plano_arcos_de_la_frontera9e45p.pdfIn PDF document text
    • https://jinepesel.weebly.com/uploads/1/3/5/3/135346763/1867508.pdfIn PDF document text
    • https://cdn.sqhk.co/pabilere/7shhqhb/metal_slug_3d_pc_games.pdfIn PDF document text
    • https://kexinebig.weebly.com/uploads/1/3/4/3/134338338/9404fe.pdfIn PDF document text
    • http://wugigazugijub.22web.org/church_poster_design_template.pdfIn PDF document text
    • https://jelakuge.weebly.com/uploads/1/3/1/8/131856802/tunefajotujola-wepika-nafoxaxosito.pdfIn PDF document text
    • https://navitadewota.weebly.com/uploads/1/3/4/0/134017874/bufojola.pdfIn PDF document text
    • https://cdn.sqhk.co/levowexesu/cFhgDjg/46966480616.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/tinajabizoreguf/market_analysis_software_template.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/nasisuzuvodapu.pdfIn PDF document text
    • http://sudaluz.rf.gd/ilearning_oracle_answers.pdfIn PDF document text
    • http://buloderijapu.epizy.com/sakatari.pdfIn PDF document text
    • https://s3.amazonaws.com/lizuseguwix/ashampoo_photo_recovery.pdfIn PDF document text
    • https://s3.amazonaws.com/joterige/xibuxekitewatowo.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_off0000e9f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9F4 5404 bytes
SHA-256: 37bc5b925900ca5f34b47c80a73734a26c3d7bea1903e2c65d553933fd401a9a
font_01_sfnt_off0000fc49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC49 11640 bytes
SHA-256: db0151897e6c30cb7e372789a1c7397da53010830028974c47aee04a5eae3557

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