Malicious PDF — malware analysis report

Static analysis result for SHA-256 35e923a9d6c0ee89…

MALICIOUS

PDF

67.7 KB Created: 2021-02-14 18:49:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 1dbbb4239370b4588c2cb4046a574aaf SHA-1: 1e803ba8649d312456599011c85329c702f28500 SHA-256: 35e923a9d6c0ee898b41c9b86a436a140c7d2c6553ef9bdd07ab73fbbc0db8cd
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=steamfest+2020+entry+fee PDF link annotation
    • https://cdn.sqhk.co/xawodoze/OjJhfih/gotufigimavexomonakot.pdfIn PDF document text
    • https://cdn.sqhk.co/dewavasese/LaijgdT/etisalat_business_1000_plan.pdfIn PDF document text
    • https://cdn.sqhk.co/zidexamuwela/gdZieLT/download_racing_fever_mod_unlimited_money.pdfIn PDF document text
    • https://cdn.sqhk.co/pijovowifil/jcgdWn5/general_knowledge_quiz_questions_multiple_choice_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/mopewedote/HrhaMGr/20779378144.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4493569/normal_5fee14e3189d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380694/normal_5fff76b7551cc.pdfIn PDF document text
    • https://cdn.sqhk.co/dusawugivepo/f1Dhhha/water_park_racer_mat.pdfIn PDF document text
    • https://cdn.sqhk.co/sawapevodef/gBeighi/color_fill_3d_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411250/normal_5fc93848b5cfb.pdfIn PDF document text
    • http://kudopifupelixi.22web.org/fannie_mae_guidelines_mortgage_late_payments.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482020/normal_5fca894c82f48.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://budezeja.rf.gd/microsoft_access_2010_free_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/roblox_shirt_template_galaxy.pdfIn PDF document text
    • http://webubekesivamuf.epizy.com/best_brute_force_app_android.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/cdphp_medicare_choices_vaccine_coverage_guide.pdfIn PDF document text
    • http://navadolaje.rf.gd/lunez.pdfIn PDF document text
    • https://s3.amazonaws.com/nevowimo/48518204320.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_off0000ce97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE97 5360 bytes
SHA-256: 31121a00000a395a65b3e9c220b3bf1951f2ab4be3d04eaa3bbee49be4190f47
font_01_sfnt_off0000e0c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C1 9780 bytes
SHA-256: 56eb6d8a5f18154700285176e758bde54de8497711cc414b534dca224c879fe8