Malicious PDF — malware analysis report

Static analysis result for SHA-256 02988a8eee38be18…

MALICIOUS

PDF

69.7 KB Created: 2021-03-09 00:00:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7878f5e28932511fe87217370eb597f8 SHA-1: 911f43eb6c8f213aaf33f0cfce1c780cf66b69db SHA-256: 02988a8eee38be18a013702b553cf5f647274b1db952d2fc8e77244ab1399d48
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://botokaw.ru/award?keyword=ayushman+bharat+yojana+in+marathi+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4375528/normal_6038c3045ebb7.pdfIn PDF document text
    • http://xufededubumavif.scienceontheweb.net/94052807309.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483071/normal_5fdc4aea3f48e.pdfIn PDF document text
    • https://cdn.sqhk.co/nixafusoda/jfgfh6q/free_printable_preschool_learning_games.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462775/normal_5fdd1e8e5d6b4.pdfIn PDF document text
    • http://wewogokuwidu.mywebcommunity.org/99765542869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369654/normal_603b04550d01c.pdfIn PDF document text
    • http://kakorixow.mygamesonline.org/83812765347.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411923/normal_5ff175b998198.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385876/normal_5fd10f270205e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419832/normal_600fc9a5d8fef.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374380/normal_5fd6fb6c6798a.pdfIn PDF document text
    • http://motarojetox.sportsontheweb.net/narinofetib.pdfIn PDF document text
    • https://cdn.sqhk.co/rapovixovuti/hewIhi7/gakademinuzo.pdfIn PDF document text
    • https://cdn.sqhk.co/julukimesof/dhdifid/tobujagololesorekazalado.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450628/normal_60410a85972f6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://a32e93c2-1aa3-4149-af29-aa5d163ab988.filesusr.com/ugd/40336e_ce0dfc5f8543459d92fc66d05d9dd814.pdf?index=trueIn PDF document text
    • https://fe2b84af-b373-48e0-a714-f820169e3fe9.filesusr.com/ugd/ed1d2e_f03b91d8d939474a9d6777efe7a07a02.pdf?index=trueIn 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_off0000d41f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD41F 5556 bytes
SHA-256: 6a8dd471eefa9a5c50771b685719b0a988f4f7b60c2208eee751047ca1bc1e59
font_01_sfnt_off0000e6e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E3 10136 bytes
SHA-256: 14d437ce309c52ad77d05163ddf56b9c8b3ccac219bcb0938d4d4e99881b455c

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