PDF static analysis report

Static analysis result for SHA-256 524c6aba3be43964…

SUSPICIOUS

PDF

44.0 KB Created: 2020-11-08 23:47:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 38d6d59f774d03900bb0b705857311b3 SHA-1: d0b2f384366a096e8d3b6e7a88cc039f08da7bf9 SHA-256: 524c6aba3be43964a176206462318866f5c6a20f9c18ed8154ec780560b3e494
36 Risk Score

Malware Insights

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

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://traffset.ru/123?keyword=thermodynamics+ap+chemistry+worksheets PDF link annotation
    • https://gukaguse.weebly.com/uploads/1/3/1/3/131398473/8125998.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374968/normal_5f9f37d8b16e0.pdfIn PDF document text
    • https://bibeliki.weebly.com/uploads/1/3/0/7/130738572/8414347.pdfIn PDF document text
    • https://fukudikewug.weebly.com/uploads/1/3/4/6/134686524/7835a4a4ee16.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366033/normal_5f8e1218d1cc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_5f93aa384090c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424985/normal_5f9a71a899010.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369316/normal_5f8d09c9248da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393776/normal_5f9bb6d4cc720.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/8f494904-8fef-4148-ad7a-bd75bca455d3/3960405902.pdfIn PDF document text
    • https://pomobuvumedu.files.wordpress.com/2020/11/b2b_marketing_plan_template_ppt.pdfIn PDF document text
    • https://xopilematuv.files.wordpress.com/2020/11/lilopo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/675ca7f6-c7e2-41a4-b0e0-8be7d3907532/53552341196.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_off00005e71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E71 5488 bytes
SHA-256: 506f74ac985660783c840d62a4eb89228d13ae54810ea5f3b32a656e23285313
font_01_sfnt_off000070fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70FD 3048 bytes
SHA-256: cf85b4addcb7588b453cbcb8e701aac8adc6ede3570e41cdc6dd073e212f1506
font_02_sfnt_off00007da7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DA7 10868 bytes
SHA-256: b62e18cb53ac7867f2dd0ffa6d020f8105ff5a382527e2dc6ddc7986df3ff214