Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ee0228b6ea6f59…

MALICIOUS

PDF

72.9 KB Created: 2021-03-05 13:20:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: c9968064950a4fcc9377f8998bbdb45d SHA-1: a1b64b143475a6740581802727490165ad0eec0d SHA-256: 97ee0228b6ea6f59d59f372946fd24dbd496dfb49854f3f4f6740320d3cfcc09
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://dugedepap.ru/award?keyword=what+is+the+shape+of+benzene PDF link annotation
    • https://cdn.sqhk.co/norumuwapa/cA4gghg/25885074788.pdfIn PDF document text
    • https://cdn.sqhk.co/furafurume/Qhjietq/buzzer_sound_effect_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448545/normal_6006e97149801.pdfIn PDF document text
    • https://cdn.sqhk.co/wazewiput/lOqhdjj/baobab_vr_animated_vr_stories_you_love.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445544/normal_60184e822a01b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4457854/normal_5fe5c4d95bf66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366350/normal_601a59af288a7.pdfIn PDF document text
    • http://dujosibixejo.22web.org/tujod.pdfIn PDF document text
    • https://cdn.sqhk.co/lojenozasila/jhgjBUA/pidamomevinonalelaxo.pdfIn PDF document text
    • https://cdn.sqhk.co/pasojixaju/4qjghij/36420052800.pdfIn PDF document text
    • https://cdn.sqhk.co/jagapifa/Uji2nGk/download_3dtuning_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zakolemafemo/pihLgeM/7378173423.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450898/normal_5fd71adca13a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476783/normal_6032791dd47f4.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/rupatojuko/vinaphone_plus_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/paluxerivukekugitevir.pdfIn PDF document text
    • https://s3.amazonaws.com/vesubodufisi/96965390273.pdfIn PDF document text
    • https://s3.amazonaws.com/wupixufekijax/15887158522.pdfIn PDF document text
    • http://zufonokimilije.epizy.com/midland_radio_gxt1000vp4.pdfIn PDF document text
    • http://vatugiw.epizy.com/jogudo.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_off0000e29d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE29D 5064 bytes
SHA-256: 385b17ba9428d97b1f9451d85ae61a35e06c4e9eb7d14f9608382ded0f9192c4
font_01_sfnt_off0000f3ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3ED 10040 bytes
SHA-256: 3ca0f4e71138ccf722ae054849daae51a765425c4fda3118590c5b2e63c037d3