Malicious PDF — malware analysis report

Static analysis result for SHA-256 72af73672be72dd4…

MALICIOUS

PDF

69.5 KB Created: 2021-02-28 12:48:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3b2f32c5a1e6bf4a727734833c70d0bf SHA-1: b0eb7e3c03001e3dfa8ebc8d8c23a2979df9495e SHA-256: 72af73672be72dd488299fff883e32fad38e03a17246e54fc6bad7c69c6e2924
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/wix?keyword=7th+grade+geometry+questions+and+answers PDF link annotation
    • http://subonus.ru/how_does_topography_affect_soil_erosionu07rc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485309/normal_6025c4d6cc0d9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409396/normal_60148cca46d01.pdfIn PDF document text
    • http://appless.space/garozudogivudajupuwx8ao.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414864/normal_602a6efe7b688.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414166/normal_6004948c61dcd.pdfIn PDF document text
    • https://cdn.sqhk.co/xonudutixova/b5ieQZl/lolibis.pdfIn PDF document text
    • http://idealicaitalia-ufficiale.site/fabasijutalejfcic2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390324/normal_5fd05bb4bceec.pdfIn PDF document text
    • https://cdn.sqhk.co/kurutuxerodi/jafxjio/game_of_empires_heroes_warden.pdfIn PDF document text
    • https://cdn.sqhk.co/gobikazifelo/5jaidhd/weed_farmer_overgrown_apk_cracked.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495860/normal_5fcbaebf919c1.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/medaliwifufugel/goxodibofagetu.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_off0000d22b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD22B 5512 bytes
SHA-256: fd1987659ab2185ecd191760b2568b3a1ae5f4dfc497698586d109dc25599763
font_01_sfnt_off0000e4cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4CC 10720 bytes
SHA-256: 46924ec9bd219d0a660d2e5e2913e389227936ad0f94868fef7e52e8084f79bc