Malicious PDF — malware analysis report

Static analysis result for SHA-256 b17b9bdc46ea5eab…

MALICIOUS

PDF

74.4 KB Created: 2021-03-02 23:53:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dd603da7f2bdbc2701afa30c610c1c21 SHA-1: b7c64e6969c17b1977e4bddcea04420ec9d1b2ce SHA-256: b17b9bdc46ea5eab83f986c9918dc64975d3a44dec9d97c027b27598e52a7c8c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://fokemale.ru/award?keyword=how+can+i+watch+the+disaster+artist PDF link annotation
    • https://cdn.sqhk.co/botonerepap/3i1Gzhf/rinivadoranujitunaputo.pdfIn PDF document text
    • http://7evenrp.ru/zogoladuremonukawoxivl1ny3.pdfIn PDF document text
    • http://clubstore.pro/zotilugiwuberivezaruzutwukt1.pdfIn PDF document text
    • http://eagleaff.com/lodagisadirenizolal03x90.pdfIn PDF document text
    • http://rodsfish.club/931291970915j2tl.pdfIn PDF document text
    • https://cdn.sqhk.co/gasawivu/hbielVT/34049044042.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468536/normal_5fcdfe41181ed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4461525/normal_5ff18d33c6851.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369164/normal_5fc57bda039d5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479705/normal_5fd034ce489e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474977/normal_600068e11dd9c.pdfIn PDF document text
    • https://cdn.sqhk.co/jikogifuxa/c0gg5gd/gonoxu.pdfIn PDF document text
    • https://cdn.sqhk.co/jabuvilir/w9kjehf/nonanipotekofukotekula.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464732/normal_603187392d370.pdfIn PDF document text
    • https://cdn.sqhk.co/wezupobuwab/JjjhjJn/drift_car_ride_along_near_me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412778/normal_5fe30a41f069d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378165/normal_601369d3a3a20.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427103/normal_600545ed3b517.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_off0000e663.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE663 5048 bytes
SHA-256: 98eaeb6eaf92aa023e4948c3d1a7cf01dd1f1e3126ff34db3cecae5f1c1fa808
font_01_sfnt_off0000f794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF794 10840 bytes
SHA-256: d7ca3498e042320b42b9c671b0c4001e3f11e2257faa5ebf41d061cbdd2160af