Malicious PDF — malware analysis report

Static analysis result for SHA-256 af06d4a3e300b2ca…

MALICIOUS

PDF

38.8 KB Created: 2020-10-04 17:04:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 7474511bd8b0e2fec634288272da2dc6 SHA-1: 55a2608760e07fd80b44e329477aea4b1426c0b2 SHA-256: af06d4a3e300b2ca528cf93ab30f1cb3c96c1ee721bc16b15b4e038140b41254
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 'https://ggtraff.ru/strik?keyword=modern+house+floor+plan'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary purpose is to lure the user to this malicious site. No scripts were extracted, but the presence of embedded URLs and the redirector heuristic indicates a likely attempt to download or redirect to further malicious content.

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=modern+house+floor+plan In PDF document text
    • http://files.parkcityspayoga.com/uploads/1/3/0/7/130739116/50067a71.pdfIn PDF document text
    • http://files.nousworks.com/uploads/1/3/1/3/131379085/bekegilapip_wojuped_nuvufuma_mapujule.pdfIn PDF document text
    • http://files.praisehymnfashions.com/uploads/1/3/1/4/131453990/genafezegekaraj_widakibagexa_noxowelizojeka.pdfIn PDF document text
    • http://files.capitalexpenditures.net/uploads/1/3/1/4/131453028/cbf9ff2327.pdfIn PDF document text
    • https://site-1038599.mozfiles.com/files/1038599/kebewup.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/68df15d9-c2be-4d94-ba3a-2798efa47fe3/76139339489.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7b88e6d-5627-4405-9468-b21820363bb5/74796966694.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/617c1677-72d2-4f01-9d73-e8c344e2c36f/51463658379.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/872ad8d5-ff8e-4422-96b2-2c312360164f/49090950398.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ac6ad7f-b31c-41c4-8b47-30b246218dd6/89954316326.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b66c2806-db95-4b9d-9e75-7e72951ddbb3/63392328500.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2fbe498-c541-4bcd-8f90-8a1d46c06245/34698527179.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_off00005965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5965 5136 bytes
SHA-256: 578ae2bbd33d56cc901ba47f882cce78008e39ea7a3ecf3c2dc2eb2223b9bd50
font_01_sfnt_off00006ae4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE4 10144 bytes
SHA-256: 0a677fa42aa4bdd3042150f0d4d7778e1023b2e9de73a2d68972cbc573428294

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