Malicious PDF — malware analysis report

Static analysis result for SHA-256 122efb24d6e6706a…

MALICIOUS

PDF

71.8 KB Created: 2021-02-24 23:13:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: e07f901283d8bc8733631dd5664d59d7 SHA-1: bbbaea59f9f801d39660f14d9df960cc54bf3383 SHA-256: 122efb24d6e6706a12ee9d3bb5b7ea06d918cba7cf506f5751b12093d4c7b93a
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jottigo.ru/wix?keyword=ethics+across+the+professions+pdf+download PDF link annotation
    • https://cdn.sqhk.co/vaxarogajib/hjiaghJ/las_vegas_day_trips_to_antelope_canyon.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4423137/normal_5fcfb71ef02a9.pdfIn PDF document text
    • https://kutenamig.weebly.com/uploads/1/3/0/7/130740069/tipixoti.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451755/normal_60033d9b89d14.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4406777/normal_5ff55fc4cdd4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444622/normal_6012e32bc78fe.pdfIn PDF document text
    • https://cdn.sqhk.co/gaxudofexal/jcihNgf/children_s_read_along_books_with_cd.pdfIn PDF document text
    • https://zemapefim.weebly.com/uploads/1/3/4/4/134485651/nopiveveva_bokak_kapuboxomur_wadidokosot.pdfIn PDF document text
    • http://wejuzofibab.medianewsonline.com/93242434850.pdfIn PDF document text
    • http://nesorus.mywebcommunity.org/16979139146.pdfIn PDF document text
    • https://gakezepatirana.weebly.com/uploads/1/3/2/7/132712251/1409722.pdfIn PDF document text
    • http://mowefopovog.mywebcommunity.org/56184064441.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488336/normal_601d095f7228c.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/kalanejaxutilif/54911859767.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/fusexeros.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/9457900460.pdfIn PDF document text
    • http://wejufutaz.onlinewebshop.net/35744593758.pdfIn PDF document text
    • https://s3.amazonaws.com/xukonakefules/jigik.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_off0000dd8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8A 5292 bytes
SHA-256: 76cf177f933b0b57a1457cdc050570ba632b0bae231d10052ec25c0efb515974
font_01_sfnt_off0000ef9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF9C 10024 bytes
SHA-256: 3abf4b9ae067ab8ed50adff8b92c03ecf21723ff9a3c8bc4f1cefce08339369b

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