Malicious PDF — malware analysis report

Static analysis result for SHA-256 098772f23afc8baf…

MALICIOUS

PDF

72.7 KB Created: 2021-02-24 20:20:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1f276885074790523d16383ee9a3d2c0 SHA-1: 8cd8e1ce2c15e380948502cf2241e4d6454efd8c SHA-256: 098772f23afc8bafd1b837e978b0fbc27d9de935e692e9f0b506d7755b5e1aa8
136 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
  • 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://seumenha.ru/aws?utm_term=1998+polaris+xplorer+400+4x4+owners+manual PDF link annotation
    • http://begavarig.22web.org/jivabogarosutupenivevo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457330/normal_600d5d59714ef.pdfIn PDF document text
    • http://xijowezuxu.iblogger.org/63486694026.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xirokigekokumar.rf.gd/litarizudigevezira.pdfIn PDF document text
    • http://nitusul.rf.gd/entrepreneur_magazines_concierge_startup_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/nomejaxobemorarodixonubek.pdfIn PDF document text
    • http://xipokawopigigig.epizy.com/fozupowizav.pdfIn PDF document text
    • https://s3.amazonaws.com/muvarelo/a_zero_hour_contract_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/pebuvojitiferabawem.pdfIn PDF document text
    • http://wubalele.rf.gd/77884478847.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/70761931836.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/ziwosanurogodotef.pdfIn PDF document text
    • https://s3.amazonaws.com/fuvidokibet/92135845468.pdfIn PDF document text
    • https://s3.amazonaws.com/fakuguvil/cinemavilla_2018_tamil_new_movie_s.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/hackintosh_os_sierra_guide.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_off0000dccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCCC 5664 bytes
SHA-256: b56c38d19ec97c0e4b7ffdad47ba3a9828ce77188c53b6fb7267ed18009e7a43
font_01_sfnt_off0000f017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF017 11084 bytes
SHA-256: 993409f9a32d8c08bcf48e1651d12090b9ffc8fc3731bf02109edf79f2065a0b