Malicious PDF — malware analysis report

Static analysis result for SHA-256 09f6a7db360d7b61…

MALICIOUS

PDF

74.4 KB Created: 2020-11-27 21:42:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a791cc33c2b321ab04d5081685ce0748 SHA-1: 2702453a838005a893209937776e14b4950b5288 SHA-256: 09f6a7db360d7b618dcbd4fd530c293b9cd4a677e996f398f8ce91bdfc189bf9
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://traffking.ru/strik?utm_term=los+5+sentidos+del+ser+humano PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380871/normal_5f8ef96434a08.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/3104e5f5-2477-4dd7-bafc-e985bee157c0/71103792270.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/733c3991-613d-4d7f-9592-527cd3fdb9b5/66569145326.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9301885-08dc-4b49-8cd5-5769a04c1b14/namitapiwovexowevus.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/00e58937-55f8-4b8b-b3e1-23c065a1cb31/16508524040.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/beed282a-ab78-4490-9734-0777b312dcd7/ziwogu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6f0e453-f386-4098-b00d-f265d1cbc969/example_of_radiation_in_heat_transfer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fec4970d-a0a9-45c8-bc4c-8aed0e58a39a/xegepepunakajumom.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/71ab9d29-ceff-451a-8483-b1a9bd5c8956/lewis_dot_structure_covalent_bonds_w.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d0c49c4-2dd1-4414-a559-cd2870a80bd8/xinafubosazular.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d602a5b6-56b3-4711-8b73-481de5b1db72/50280411426.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dafb60f6-de29-42cd-813f-9235b1f1872d/luvabodejitamelagi.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_off0000e0be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BE 5132 bytes
SHA-256: b8bbee15d41497efdef217d9f237063063ade13050cbd344c74e10629024002e
font_01_sfnt_off0000f204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF204 12752 bytes
SHA-256: dd9f81ec49b26e9ed88c4085bf6bbe8993a97357975ef2f55ea34337d6116a95