Malicious PDF — malware analysis report

Static analysis result for SHA-256 2602a5b677403c0b…

MALICIOUS

PDF

47.3 KB Created: 2020-10-02 20:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 780a6861560dabf0f6fc059bee301384 SHA-1: ea76a6f6fcce4540655a9d0f9cbf7a368d047acf SHA-256: 2602a5b677403c0b93bf1e3b6002cefc0825736f1ae02ee58e7157f571254900
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ggtraff.ru/strik?keyword=good+bones+hgtv+episode+guide In PDF document text
    • http://files.elephantade.org/uploads/1/3/2/6/132680986/3096512.pdfIn PDF document text
    • http://files.fittingroomligonier.com/uploads/1/3/0/8/130814672/sodumavasoso_sugenufefigu_tinivotosuna_sezomojodupebe.pdfIn PDF document text
    • http://files.palmerdavidart.com/uploads/1/3/1/3/131398547/xatarefatufuwut_tomew_sozexitujan.pdfIn PDF document text
    • https://site-1036745.mozfiles.com/files/1036745/17812081360.pdfIn PDF document text
    • https://site-1036697.mozfiles.com/files/1036697/zadokanotukotal.pdfIn PDF document text
    • http://files.madagascar-travel-centre.com.au/uploads/1/3/2/6/132681438/sasogi-jebunar-vovevijafamas-vaziromito.pdfIn PDF document text
    • http://satur.kenneth-s-photos.com/uploads/1/3/1/3/131379641/bbe70019cf.pdfIn PDF document text
    • http://files.promanchesterdigitalmarketing.co.uk/uploads/1/3/0/8/130874350/rotumuboniwozanoz.pdfIn PDF document text
    • http://files.thescriptedcloset.com/uploads/1/3/1/3/131380354/direp-dovotowaxujuwu.pdfIn PDF document text
    • http://vigek.bornagaingardens.com/uploads/1/3/1/3/131384429/zawokanona.pdfIn PDF document text
    • http://rawime.sheepprogram.com/uploads/1/3/0/7/130776334/1322385.pdfIn PDF document text
    • http://zulabi.thekansasbeecompany.com/uploads/1/3/0/7/130776346/safelejakateb_fujuw_ninalemin_serezod.pdfIn PDF document text
    • http://files.hssuaai.com/uploads/1/3/1/1/131164117/tubodi-kebogobigagito-mixisejevafuk-gamejuro.pdfIn PDF document text
    • http://xegenikam.cathycarterartist.com/uploads/1/3/0/7/130775565/e747448a7076.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_off00007c19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C19 5112 bytes
SHA-256: 13798785b8440966a178296633fcea324089fc249185d3afff23eec83c2d1ec7
font_01_sfnt_off00008d86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D86 10272 bytes
SHA-256: eb400133b002943d4b21b9ff7745c24bffb7f1d817e1ed9eb2f42a4c6b465c41