Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c47263fd233ee96…

MALICIOUS

PDF

66.0 KB Created: 2020-11-27 23:03:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 3104c5f865e9bb2cb561f8a7598a8288 SHA-1: d7757ea6b864f31ff0a4da964a285029bc8e30b0 SHA-256: 0c47263fd233ee96fb953bbf9ed0025267a684633978b6c66a15cd82c82421f6
154 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and 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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://gettraff.ru/strik?utm_term=persona+3+temperance+arcana In PDF document text
    • https://cdn-cms.f-static.net/uploads/4451028/normal_5fa7e6e7bdac0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/03ddf1fa-329f-48d7-8370-04d705607c41/35015596769.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f61d270-d67a-4e22-aeed-51517f5cc9c7/measures_of_multivariate_skewness_an.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/18636844362.pdfIn PDF document text
    • https://s3.amazonaws.com/lodazojamuva/atkins_physical_chemistry_8th_ed.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8f81fee-6b6c-44cd-bf55-b6c8336d2a5e/okaloosa_tax_collector_fl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/056e31d3-7aec-495a-b9e9-37b7610959e9/16857646948.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/jopavilawosaveti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2848f9f5-8023-49ce-a3ef-818c110ead6d/goldorak_pisode_74.pdfIn PDF document text
    • https://s3.amazonaws.com/kavitokolezub/el_autoestima_libros.pdfIn PDF document text
    • https://s3.amazonaws.com/pibajuwi/rififino.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/sedusodigapotegisowogifu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/81d82afd-7aba-49a5-b712-43988b2b698d/fenris_romance_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/684381155.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5caeca1-9d8a-4d60-8b60-8975a1a749d5/silijenasidebolan.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ba54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBA54 3060 bytes
SHA-256: 9fa1a55168a5a77a6622662ccf48f53d04e08c744903068b1ea9b6bd339f19e3
font_01_sfnt_off0000c52e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC52E 5212 bytes
SHA-256: a1410d11fa0b93920bb8699e5f802719febe3a277823dceb726067221e215616
font_02_sfnt_off0000d6d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6D0 10544 bytes
SHA-256: d85f0e57137ef23ccdb780fdac09386bb01e800dc9ee1ecb4e19bf177b9ecbde