Malicious PDF — malware analysis report

Static analysis result for SHA-256 9faae243577f57f3…

MALICIOUS

PDF

65.8 KB Created: 2021-02-13 10:40:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 558aea5d88e1bd3f0de798c38a5cecfd SHA-1: 326b1e779917ffaddd55ca3f9c4ec617f964f1b6 SHA-256: 9faae243577f57f33e07e50e8b073364d8c1d2f0e2d0c58d557ede4c8abbeaad
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://druttle.ru/wb?keyword=saucony%20guide%20iso%202%2043 PDF link annotation
    • http://gitilapen.66ghz.com/acs_mandated_reporter_nyc.pdfIn PDF document text
    • https://cdn.sqhk.co/sosobita/Hghidue/drawing_board_app_for_windows.pdfIn PDF document text
    • https://cdn.sqhk.co/lilapanorup/gggfnmi/taxanagarewulenanidivosak.pdfIn PDF document text
    • https://cdn.sqhk.co/gijosevozu/hbPcqgc/color_balloons_meaning_acnh.pdfIn PDF document text
    • https://cdn.sqhk.co/zekafomaze/NihiaLf/digital_marketing_courses_online_free_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/rokunufoleti/ipiitd4/regezorige.pdfIn PDF document text
    • https://cdn.sqhk.co/wepurodapike/1gUhfSi/34033861753.pdfIn PDF document text
    • https://cdn.sqhk.co/vitozogog/gcgeugc/7566286825.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vazalavowudepip.epizy.com/fesazodetakowebiwu.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/basler_gige_vision_cameras_user_manual.pdfIn PDF document text
    • http://rozesefotuduwef.epizy.com/backup_android_data_to_pc_free.pdfIn PDF document text
    • https://s3.amazonaws.com/litunux/79548872759.pdfIn PDF document text
    • https://s3.amazonaws.com/muvemasoxaji/13106377231.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/aadhar_card_application_form_online_fill_up.pdfIn PDF document text
    • https://s3.amazonaws.com/fasudikek/xerufumunage.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_off0000c3df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3DF 5568 bytes
SHA-256: 6c6b374b435976324978478f63d93f6b0fadddad2ffc18184ad54885352b04a8
font_01_sfnt_off0000d6f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6F2 10424 bytes
SHA-256: d1960b67cb342b4d3702c62cac2d23c999935679c75028eecad2a297a56d364e