Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a069a60d9b3d98…

MALICIOUS

PDF

40.1 KB Created: 2020-11-04 18:47:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 2cad5615709e0642c31f0b91e6f7c646 SHA-1: 3dfa219a92d6cf797c3f6fdee65b80ada469d28a SHA-256: d1a069a60d9b3d9842dcf929b7cba9eadbf2c19ae440b4f6e31ed51657c0f5d0
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ggtraff.ru/strik?keyword=ms+paint+color+swap' is the primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs suggest an attempt to lure the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://ggtraff.ru/strik?keyword=ms+paint+color+swap In PDF document text
    • https://cdn-cms.f-static.net/uploads/4380230/normal_5fa2ca367b2f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401545/normal_5f9fc2fc7d840.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423471/normal_5f9f9eb46343f.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/zetare/68151058349.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/xitibafifowuxuxulixasivew.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/29219dad-af9d-4c39-b060-4b4d23262b09/wendy_makkena_nue.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/116e5e41-504f-49a5-b203-4269ce90ebaa/eclipselink_2._7._4.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d828cf35-8d85-4db0-a86d-156925e1abeb/23788885966.pdfIn PDF document text
    • https://s3.amazonaws.com/pibabopuduj/plant_cells_and_their_functions.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_off0000609e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x609E 5024 bytes
SHA-256: a99db687f5176157e5aa3998637075ff84f5cc86390f5bd26f40449c690fa8de
font_01_sfnt_off000071df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71DF 10160 bytes
SHA-256: 47541083e4da3edb7da75c136da4d40bc0f6b683625b9609fc8ebb6a405a1d4a

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