Malicious PDF — malware analysis report

Static analysis result for SHA-256 9284a5c36e9ae2ac…

MALICIOUS

PDF

76.5 KB Created: 2021-02-12 17:29:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 92f36a4ad601fa6e37a874b7263f3c79 SHA-1: 32a3c0b9ede5f823bc36d04ec429d72693c148c7 SHA-256: 9284a5c36e9ae2ac5f0c4aeaba953b62ec94f8db6294a23d5e5b468fb3b4ae8d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/123?utm_term=wifi+crock+pot+best+buy PDF link annotation
    • https://tabupuja.weebly.com/uploads/1/3/4/6/134647436/xakebujo-fupivezo-korigopizepedel-buwibe.pdfIn PDF document text
    • https://sivabukejiwija.weebly.com/uploads/1/3/4/4/134459056/sofef_wosipipaged_wazesijured.pdfIn PDF document text
    • https://cdn.sqhk.co/xipepovivik/GehjYhd/furidefoduvarinafudaxam.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464995/normal_5ffdf91c70f63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379046/normal_601e67b0af1aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485570/normal_5fe88cd946e02.pdfIn PDF document text
    • https://waretufiwad.weebly.com/uploads/1/3/4/5/134581883/8e6791a1cb525f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451212/normal_5ff2981488d59.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471692/normal_5fee684fd0c61.pdfIn PDF document text
    • https://cdn.sqhk.co/baxilutifi/jjjgAif/76577161323.pdfIn PDF document text
    • https://xigobiniliw.weebly.com/uploads/1/3/5/2/135298108/savoxonelamo_vijekunom_mowagid_dobasa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428035/normal_6010a2618c8d3.pdfIn PDF document text
    • https://cdn.sqhk.co/tijinujul/fijjd1P/iot_army_opord.pdfIn PDF document text
    • https://babixedijifaz.weebly.com/uploads/1/3/5/3/135385025/3523099.pdfIn PDF document text
    • https://bopidojosonek.weebly.com/uploads/1/3/1/3/131384153/buxiridatevunoturot.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_off0000ef11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF11 5088 bytes
SHA-256: 3f2b7617e768200d1c6d3bbd6883c93083a159ca4cd9951971320a92ffb1e403
font_01_sfnt_off0001008d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1008D 10800 bytes
SHA-256: 440dcf283c9f556a8f12a63937644f73773941bef82a304fbe169af11a223b64