Malicious PDF — malware analysis report

Static analysis result for SHA-256 d826707210be9145…

MALICIOUS

PDF

68.5 KB Created: 2021-02-13 16:22:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: fb2cd09fb4b96281665c2e49d0939c58 SHA-1: 395264026ecf9e3a99de4af29de9f8be7cc39386 SHA-256: d826707210be9145dd11d26b62118de74b720a8e90deafb70aa257acbfe7779c
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://baarspo.ru/wix?keyword=cell+division+and+the+cell+cycle+worksheet+answers PDF link annotation
    • http://hookup157.site/20880327350nkbxv.pdfIn PDF document text
    • http://madamzero.com/percentage_quantitative_aptitude_questions_with_answershbzjq.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/Lgc6oha/spin_top_fighter_beyblade_revolution_mod_apk.pdfIn PDF document text
    • http://prostosite.site/koxekoxiduwekiram56fr.pdfIn PDF document text
    • https://cdn.sqhk.co/xivijela/NjTgg52/wobagirupibodi.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/Vgiai5D/rome_total_war_cheats.pdfIn PDF document text
    • https://cdn.sqhk.co/dosojegomugu/jEpghja/94364764887.pdfIn PDF document text
    • https://cdn.sqhk.co/zexetiminav/heicjiT/movoxeraxemuwuzuwopa.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/gotijejaj/bestanden_delen_iphone_android.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/95354643967.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/angularjs_templateurl_path.pdfIn PDF document text
    • https://s3.amazonaws.com/neviwove/muxoru.pdfIn PDF document text
    • https://s3.amazonaws.com/zulezov/tekomafedip.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/faraf.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/quora_financial_aid_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/navoburarovada/jerizofafiduwefunob.pdfIn PDF document text
    • https://s3.amazonaws.com/vefagotoje/printable_number_line_template.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxulikiwab/asphalt_9_hack_ios.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_off0000d05b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD05B 5252 bytes
SHA-256: 84fefc59bdf8a17926c3d3e430916093856113d7e2091bee2fe355ed3a627a1d
font_01_sfnt_off0000e243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE243 10148 bytes
SHA-256: 928fe3562cda168d3b4ce52e3625d5581c6479f3ea0042bb304b04f46fab5d89