Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cc488931aede96b…

MALICIOUS

PDF

76.7 KB Created: 2021-01-27 12:41:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ec9347fc3be26a9c8ba8f18711e0c12a SHA-1: 71df10d49250bdfbdb120b8e63cd9793110bc883 SHA-256: 7cc488931aede96bce6d442d3b033f30efbeca22b9ec8064e2fde26badb79c75
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/aws?utm_term=performance+parts+for+cars+near+me PDF link annotation
    • https://tabawowap.weebly.com/uploads/1/3/4/5/134599755/65e0fc50f20e.pdfIn PDF document text
    • https://vavaxurose.weebly.com/uploads/1/3/0/7/130775274/visupadovelego.pdfIn PDF document text
    • http://fastpysystem.online/pemobuzizugapewekh0qq8.pdfIn PDF document text
    • https://tinutenuku.weebly.com/uploads/1/3/4/6/134664278/vavinowepugedas_katikel_tujaritetufopa.pdfIn PDF document text
    • http://winokuzovew.iblogger.org/metformin_for_pcos_ovulation.pdfIn PDF document text
    • https://mepifinifiwiza.weebly.com/uploads/1/3/4/3/134334375/37154ac1a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392237/normal_5fce915d855d3.pdfIn PDF document text
    • https://buderenedisam.weebly.com/uploads/1/3/5/3/135302361/xedawovixone-pegefulisija-jewuwibiruku-rupawiri.pdfIn PDF document text
    • https://dadizatutelebi.weebly.com/uploads/1/3/1/0/131070904/sogug_xuzedepolen_metupejasinix.pdfIn PDF document text
    • https://lulodepi.weebly.com/uploads/1/3/0/7/130776712/2095031.pdfIn PDF document text
    • https://fuzedefona.weebly.com/uploads/1/3/4/5/134578490/6b587a142350b.pdfIn PDF document text
    • https://cdn.sqhk.co/kupovite/jIIjhJQ/78348334416.pdfIn PDF document text
    • https://larigagip.weebly.com/uploads/1/3/4/8/134887586/binunijatulivor-vukotiza-kagemevewir-gebedazeg.pdfIn PDF document text
    • https://cdn.sqhk.co/wixedineve/ibeiazy/5942610138.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nagikesedogoru.rf.gd/17854415635.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_off0000efd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD9 5128 bytes
SHA-256: 4e0bef9c98b9c2de92f4498b69e433de45d25e7e3d5f48a1d2b39ac4fd73d824
font_01_sfnt_off00010133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10133 10740 bytes
SHA-256: f9f2baa5da9791b580a3d933bb6a50f27e4121434c4cdafc18d1b2c4ac66edd2

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