Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8c3bf9898163272…

MALICIOUS

PDF

68.2 KB Created: 2020-12-21 01:31:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 478e4f8543a6f55683a9e9728683ab9e SHA-1: 9271ecdcf7d229cb136b8f1679157d5c3c76e98c SHA-256: f8c3bf9898163272b25bf3505a23a41055d6b556ee87c59f5d88382a7038a426
96 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 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 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffine.ru/strik?utm_term=playstation+5+best+buy+price PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4403946/normal_5fd694ed7fa94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494874/normal_5fba9e8e065fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417526/normal_5fab3e3ab60b3.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/nilititonawafim/11199697964.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a41d803a-db19-475e-898b-0008d3d03090/zevokinazijududonog.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0b3f3294-9755-4ffa-a696-8a09439a1a0c/sharepoint_designer_2013_user_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13d7062f-4316-43c5-a6eb-95e5fe96e4e0/amana_hotel_air_conditioner_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a92a2204-63db-4dbb-aa57-c5149a97eb8f/bipovemojidazedi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7198e68f-e0d5-4be5-9a75-3d5f40842426/75121045269.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/082f6049-fc16-47fb-9e44-ec352c8835c7/xefemidofejilamomukalob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78765d58-a204-4586-826f-b75ac49b65e9/kipaxosujajeko.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6560638d-c6a9-4adc-8aa7-c2cfd5b393bc/continente_americano_con_division_politica.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/399fa191-bc76-4d08-a3df-abf5a2f4bc83/usarec_manual_3-0.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_off0000cc2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC2B 5292 bytes
SHA-256: 97ff4427b833559f492cf809a12fb2c1144a1fec5b1a39a7ed91813357898820
font_01_sfnt_off0000de46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE46 11088 bytes
SHA-256: 4ba011cfc92a4c074c1cb1165e498ab9e4d394bca7f62f10416a575f76d54cb0