Malicious PDF — malware analysis report

Static analysis result for SHA-256 69b02661b9a2b0bc…

MALICIOUS

PDF

41.3 KB Created: 2020-11-05 06:59:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8a91515d2ff37f885a492e93d4c1170c SHA-1: d9e301d69c90e3771f2a352182126a3ecb9612de SHA-256: 69b02661b9a2b0bc4f9acdfa2f58d28bff4ce0429294e6bc71bc206ca8696676
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=ff14+shinryu+guide In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366343/normal_5f8f96977100f.pdfIn PDF document text
    • https://gujodoludota.weebly.com/uploads/1/3/2/6/132681740/1804300.pdfIn PDF document text
    • https://fimuxexepal.weebly.com/uploads/1/3/4/6/134615427/4989dffb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369505/normal_5f9b2da44bcca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369519/normal_5fa324b261baf.pdfIn PDF document text
    • https://laguvibokabab.weebly.com/uploads/1/3/4/3/134383318/9921adc3808.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415519/normal_5fa16488c8b2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387716/normal_5f944e864a260.pdfIn PDF document text
    • https://tazejoga.weebly.com/uploads/1/3/1/3/131383942/455754.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401714/normal_5f90fc00455bb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382953/normal_5f936abfc067b.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/turip/kipulikalexewokavawigato.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3451ccfd-5241-411f-b32d-ebc65f063c29/puzomudusurila.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/donde_queda_marruecos_espaa.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_off0000629d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629D 5124 bytes
SHA-256: 36d02635167e1f648072fcb696079003d8b3c970f1b15633bd310a929a2bba8d
font_01_sfnt_off00007420.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7420 10820 bytes
SHA-256: bd9c9703c16aba362454bc61d928f16950f2a274e2f8e64e8ef665eee3bc07e2