Malicious PDF — malware analysis report

Static analysis result for SHA-256 359bdd1b4b0af024…

MALICIOUS

PDF

87.5 KB Created: 2020-11-24 07:47:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 0d4995ea7418580674848aa7d633fad6 SHA-1: 16f5136b9daf8eb1b8e9f59a826fab969136667f SHA-256: 359bdd1b4b0af024959670ddf2666343eafa88616767379957e53f0f0191d8dd
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'traffking.ru'. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely serving as a lure for phishing or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 3

  • 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://traffking.ru/strik?utm_term=a+murderer%2527s+guide+to+memorization+eng+sub In PDF document text
    • https://cdn-cms.f-static.net/uploads/4377912/normal_5f8c3aa2bc533.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/5ea03f0d-fbe0-4d4d-8d58-ab8489c1a319/tivesisogo.pdfIn PDF document text
    • https://s3.amazonaws.com/xumakomowi/vubewekotuwidezanakivonez.pdfIn PDF document text
    • https://s3.amazonaws.com/xafuluxel/48997110088.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/45076460-f955-4e90-bb03-c98d1676fa18/age_of_empires_definitive_edition_so.pdfIn PDF document text
    • https://s3.amazonaws.com/mesotodimus/bissell_pet_revolution_carpet_cleaner_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6b44cbe7-6197-45b4-b0c6-d4f234c7ed84/wofuwojexitajimagiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29c10218-78a2-43dd-b880-93ee2a62f4b5/lejalikebirosazupafoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7966922-5192-477f-8442-7787e378c86b/k_of_c_post_3991.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/zigenedizekifemuwavof.pdfIn PDF document text
    • https://s3.amazonaws.com/sefipa/9886103770.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9edb59be-973e-4525-ab4f-84a1d378a253/jasoxilomujuravivutuvez.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e28e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE28E 8628 bytes
SHA-256: 270ff5c7485af167ce1cdb360f6ecfc6e2eac0720488aa545eaf32cc459297ed
font_01_sfnt_off0000fe06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE06 5208 bytes
SHA-256: ad0f796617568a0e0413e6cb311b5967447be889c851cc6dc9ad7f90ba5ead70
font_02_sfnt_off00010fa7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10FA7 16172 bytes
SHA-256: 051e3022a734efe69d5f652080c6dd4de2cfb19eb5fb5557f65d6456a5cff4af
font_03_sfnt_off000141f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141F8 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

Open this report in the interactive analyzer, or submit your own file for analysis.