Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb6fccf56e4fa4c7…

MALICIOUS

PDF

74.0 KB Created: 2021-02-24 21:21:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7ef3b65b82d9fb07c226f099d8ff8515 SHA-1: 93e344b9c2818a7c54146d4ee2a3205b8c0e2735 SHA-256: cb6fccf56e4fa4c7177d6d80554d5ac72b478a5b041dad24cfa1678affdd799e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://bologen.ru/wb?keyword=best%20private%20channels%20for%20roku%202020 PDF link annotation
    • http://raxejudesezix.scienceontheweb.net/telewo.pdfIn PDF document text
    • http://wiwajaluje.iblogger.org/65525362275.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414169/normal_5fe51889d54ef.pdfIn PDF document text
    • http://tixesikixux.mygamesonline.org/final_fantasy_xv_total_gameplay_time.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491155/normal_60332860a2342.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/97862343733.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462066/normal_601469f432e5d.pdfIn PDF document text
    • http://fanogizakelime.iblogger.org/7701801784.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402936/normal_60011cd2bf66c.pdfIn PDF document text
    • http://kibiwoki.iblogger.org/step_down_transformer_diagram.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/lomuper/sezafowudonifofapodotud.pdfIn PDF document text
    • http://musarozopod.rf.gd/3767377499.pdfIn PDF document text
    • https://s3.amazonaws.com/bejikefowu/64666915737.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/samsung_frp_bypass_apk_5._1._1.pdfIn PDF document text
    • http://gatakokuto.rf.gd/vositikubipolonumafigam.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_off0000e345.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE345 5552 bytes
SHA-256: d96c1324cc97ae1c2c5406f10d6cd211884650cb0f811e2918eb9eafb2a98c96
font_01_sfnt_off0000f62e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF62E 10780 bytes
SHA-256: e26c502258e76c5ef47c296cd024807e83368d8bffdcba63f4a553c2aa38d360