Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ef013379bf90d73…

MALICIOUS

PDF

72.2 KB Created: 2021-03-02 10:51:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 586c9e1e36d4ef9c8b1fb1e67406696f SHA-1: 681cda5b7d277f574e463642baf7990d6bb0cc7a SHA-256: 1ef013379bf90d7395e5e20a53b5456d326fbc4a65c046f9c113e94ea0fc0563
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://soxebez.ru/award?keyword=how+to+animate+a+cartoon+on+an+ipad PDF link annotation
    • https://tivagirususu.weebly.com/uploads/1/3/5/3/135350390/e979f0afdfab5.pdfIn PDF document text
    • http://vojemodipu.sportsontheweb.net/wepidodosazavogozapure.pdfIn PDF document text
    • http://evromotors.net/airodump-_ng_windows_7msvmn.pdfIn PDF document text
    • http://smeh-mif.space/drawing_tutorial_mangabcw7a.pdfIn PDF document text
    • http://vipimuxatomefi.medianewsonline.com/britax_marathon_car_seat_expiration_date_location.pdfIn PDF document text
    • http://tijudiwulewanuw.getenjoyment.net/77897886655.pdfIn PDF document text
    • https://cdn.sqhk.co/dudumadopole/jqiggkA/badowawanotaluxirefup.pdfIn PDF document text
    • https://warodimaziwini.weebly.com/uploads/1/3/4/6/134611971/050d0.pdfIn PDF document text
    • https://cdn.sqhk.co/vinasujitupe/2iavkWL/puzzle_3d_lemn_lidl.pdfIn PDF document text
    • https://cdn.sqhk.co/gudijupimeb/gfGHQax/pirorogokamozu.pdfIn PDF document text
    • http://rexevivejegox.scienceontheweb.net/48266687609.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/fopalew/tuvabureku.pdfIn PDF document text
    • http://zilowovuv.atwebpages.com/solving_quadratic_equations_ppt.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/invoice_templates_word_doc.pdfIn PDF document text
    • https://s3.amazonaws.com/jenagubadopi/muzasemesakedamij.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_off0000dff3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFF3 5060 bytes
SHA-256: c8f6dffcdb0a33cb05ee2345716a66df2108ecbb850eea4634323342445b5200
font_01_sfnt_off0000f122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF122 10184 bytes
SHA-256: 3c4b5e37e42eba2de74cd128ed911e226e18c3fa104fc811ec14c7c898af95b2