Malicious PDF — malware analysis report

Static analysis result for SHA-256 92360876f827f88a…

MALICIOUS

PDF

61.9 KB Created: 2021-02-17 12:25:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 381e39c086bd036ac23a9f7983dc3201 SHA-1: 9d62c417994b869c001da312dc9198cae52136bc SHA-256: 92360876f827f88af89882583ed6a14f28fd6f54c427b106a2afd952a9723ef1
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://baarspo.ru/wix?keyword=bissell+proheat+2x+model+1383+manual PDF link annotation
    • https://cdn.sqhk.co/tememagitapo/cgijcja/94440722474.pdfIn PDF document text
    • https://cdn.sqhk.co/zibomevuguli/hmIaiJz/kezegune.pdfIn PDF document text
    • https://cdn.sqhk.co/mejabutumu/jhEvjja/13476307656.pdfIn PDF document text
    • https://cdn.sqhk.co/wadupaxi/iigfhLN/horse_racing_manager_job_description.pdfIn PDF document text
    • https://cdn.sqhk.co/jokawefezo/Jqhbigv/kenixuku.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454967/normal_60036dff65a67.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366628/normal_602c4b61bd805.pdfIn PDF document text
    • http://rumagadoli.22web.org/convert_into_excel_sheet.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413851/normal_5fd1e96a44203.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466379/normal_5fd191fc1b05d.pdfIn PDF document text
    • https://cdn.sqhk.co/rimubafil/jgfgeSw/27758071137.pdfIn PDF document text
    • http://wekifojedopike.22web.org/cadence_allegro_16._6_hotfix.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469643/normal_5fc7c8e04003e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000b4d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4D8 5856 bytes
SHA-256: c3b0f4a274281987d578d39be478aeb40510bfc72c6fdddaa41931d937eec18f
font_01_sfnt_off0000c8a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8A0 10020 bytes
SHA-256: 69856f3283182984085be4129c58248d755ee7ff3b89e8835559c57662e2bb58