PDF static analysis report

Static analysis result for SHA-256 d398e661fd477b70…

SUSPICIOUS

PDF

40.9 KB Created: 2020-11-07 20:06:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 6b9a4deb21807ee723807e3012364fd5 SHA-1: d6ef1dc81aca9a56f1c8b1713407ffcb3d8bc9d7 SHA-256: d398e661fd477b70ba72aa89fcc1758a6f79b24ad8c04fbc28c6563f001b2441
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://trafffe.ru/123?keyword=imagery+in+the+catcher+in+the+rye+quotes PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378379/normal_5f94decdc42fd.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/mesotodimus/zipobadifiwuwotomokib.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/chapter_13_gas_laws_study_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jaburirarov/verizon_mission_statement_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/sivanira/the_fancy_pants_adventure_world_1_download.pdfIn PDF document text
    • https://s3.amazonaws.com/retobifulipo/free_download_swift_shader_3.0_full_version.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/fire_incident_report_form.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/vorojo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e9035385-f0ed-43f2-af85-4e2b9e8d617e/28283699541.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/durusafazabura.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/echinoderms_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/gojurugeb.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/bay_ridge_honda_ny.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd3554c6-472d-452f-b359-cca01d69be69/80116804505.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_off000062ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EC 5344 bytes
SHA-256: 592883a5a25c7d94b5beb12bfc334e97f167086bf06ffaa92912746ef2dccaca
font_01_sfnt_off000074f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F5 10000 bytes
SHA-256: 7110ad85b866264ee069c74527cdff1d0591a6a3a27685e460dc057d94889e2e