Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e8dfb45be8216e6…

MALICIOUS

PDF

71.5 KB Created: 2021-03-02 16:05:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2bf41db1c32268d2b3b9844c4e358d15 SHA-1: 4c2fe1d88d54a113aedbadfb01be7a7d97993098 SHA-256: 0e8dfb45be8216e661bbf400f81c979ecd85c753540801e85f11cd43b7f653ca
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://jottigo.ru/wix?keyword=natural+selection+and+evolution+of+rock+pocket+mouse+populations+worksheet+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4474720/normal_5fe55ef04aa06.pdfIn PDF document text
    • http://allroadkamchatka.ru/lexuzefadof84an.pdfIn PDF document text
    • http://yesstore.pro/what_is_the_simplified_form_of_120_100xerf8.pdfIn PDF document text
    • http://proita.space/rachmaninoff_prelude_g_sharp_minor3dux4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4424632/normal_5fde5d8e2d781.pdfIn PDF document text
    • http://profapp.pro/siwemigoribenebuo46xv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388841/normal_5ff0e8cf41052.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415331/normal_5fe2c9ce1ad7c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450259/normal_60265420bbc4a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374688/normal_601ef1a93f26d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500678/normal_60384a52d4e22.pdfIn PDF document text
    • http://lesantyqas.online/9769451939hmwwh.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454824/normal_601c6a5697370.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/kopisigapub/alternative_dispute_resolution_mechanisms_in_nigeria.pdfIn PDF document text
    • https://s3.amazonaws.com/jupevuxirapi/76269730281.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/13607590150.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/game_zombie_catchers_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/mesixadelomomo/pajan.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/dog_temperament_test_online.pdfIn PDF document text
    • https://s3.amazonaws.com/tanapilamaxi/gigutudatiwura.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/cae_test_1.pdfIn PDF document text
    • https://s3.amazonaws.com/jasadavebaga/509491967.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_off0000da05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA05 5580 bytes
SHA-256: 9ad05cf7ac82805c273fb6c3802321f1327e053852719b14a85798e395ea80e0
font_01_sfnt_off0000ecf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECF8 10136 bytes
SHA-256: 800486a84fb88ffd1cb8129c97dca8c0416c8b64ec2f38047d9831914aa7fd81

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