Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3d7c9b66a27ebab…

MALICIOUS

PDF

72.1 KB Created: 2021-02-15 03:04:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e1d21dad7807bb57319f5ffc5316fd13 SHA-1: 3015b56701f69411a4f1fe47eecb141092187067 SHA-256: b3d7c9b66a27ebabd20551b3375929b0830aad1cad5d73f12ae4d2ef9a6793bf
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jacksth.ru/wix?keyword=jbl+dive+endurance+manual PDF link annotation
    • https://tudegikugil.weebly.com/uploads/1/3/5/3/135317618/taluna-powexotatuwi-wadoxigeroviw.pdfIn PDF document text
    • https://cdn.sqhk.co/tavaxikanabu/fibjjmF/kung_fu_panda_legends_of_awesomeness.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365545/normal_5fe0ec3d66955.pdfIn PDF document text
    • https://cdn.sqhk.co/xinulezebi/ijifTha/best_deals_on_laptops_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/funixatugesi/g2njftR/puvomexen.pdfIn PDF document text
    • https://cdn.sqhk.co/bidelefo/RCjfWhd/ultimate_offroad_simulator.pdfIn PDF document text
    • https://woninulanomawij.weebly.com/uploads/1/3/4/6/134670754/tanatunebix.pdfIn PDF document text
    • https://fulojexerewo.weebly.com/uploads/1/3/5/3/135345176/vadikokurajime-galidunibud-favixamebegelij.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvepelela/Qsxjhrp/jubosemokizal.pdfIn PDF document text
    • https://nezuwiwobitedut.weebly.com/uploads/1/3/4/6/134600585/sigexutujip.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530868/normal_5fceb365ad3c9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416919/normal_5fdceb02ae16d.pdfIn PDF document text
    • https://wapojopaboxijok.weebly.com/uploads/1/3/4/7/134747084/domukujizaduvuvam.pdfIn PDF document text
    • https://gidupewurugi.weebly.com/uploads/1/3/1/6/131637306/lenomolemonodo.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484632/normal_5ff9cc32aa060.pdfIn PDF document text
    • https://nofodomeki.weebly.com/uploads/1/3/1/8/131871852/2154010.pdfIn PDF document text
    • https://ratofesut.weebly.com/uploads/1/3/5/3/135304008/nujorifira.pdfIn PDF document text
    • https://cdn.sqhk.co/kitobanifamo/jggfgiX/top_king_punch_bag.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/wewuxuviwar/transformation_graphs_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/jufujinavi.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/mechanical_commissioning_plan_template.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_off0000deb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB8 5096 bytes
SHA-256: 1a090e525520a96e0270c8716ca30e756af1105fc664131f4bc1d49a63ff23e0
font_01_sfnt_off0000effe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFFE 10216 bytes
SHA-256: 5d8a4e776f0b4b40c2faba0aabf33c9f274685d0ed14fcd23bf9c8143822efd4