Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ba60a1f7aec0918…

MALICIOUS

PDF

83.5 KB Created: 2020-12-28 13:51:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49aca0d904c502b576f847b0c8ab18e4 SHA-1: 18b40352d2afa5035df9ad35d9327b87fa3251a2 SHA-256: 3ba60a1f7aec0918b1f350975117cbba5943720a27c22fca438b9968f3ec7e26
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://traffset.ru/strik?utm_term=space+drawing+apps+for+android', which is likely used to deliver a secondary payload or redirect the user to a phishing site. No scripts were extracted, but the PDF structure and embedded URI strongly suggest a phishing or malware delivery attempt.

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://traffset.ru/strik?utm_term=space+drawing+apps+for+android
    • https://cdn.sqhk.co/kokuxisa/9jaihgc/shipwreck_island_mini_golf_bradley_beach.pdf
    • https://cdn-cms.f-static.net/uploads/4401505/normal_5fb00ff473549.pdf
    • https://cdn-cms.f-static.net/uploads/4369328/normal_5fe9b7c7299c1.pdf
    • https://cdn-cms.f-static.net/uploads/4425737/normal_5fa1c0e8e2072.pdf
    • https://cdn-cms.f-static.net/uploads/4453100/normal_5fbed91016a25.pdf
    • https://static.s123-cdn-static.com/uploads/4420028/normal_5fcd013d549e7.pdf
    • https://cdn.sqhk.co/junuxuseg/jcwNibU/learn_to_use_lightroom_cc_2019.pdf
    • https://cdn-cms.f-static.net/uploads/4404497/normal_5fa1929088dd8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/d26f9ae2-5faa-414b-ace4-278b85e32d5a/67464061886.pdf
    • https://uploads.strikinglycdn.com/files/4b8fa564-6465-43c0-b88e-59da66678bd1/capitalism_the_unknown_ideal.pdf
    • https://uploads.strikinglycdn.com/files/8067fbc8-2fd4-4355-a42b-dc76c37293bb/99547465116.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000109e2.bin
f4555823d2177b30bebe88398decd4abb0dfc80fef427fdd1989215522ca9183		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109E2 5484 bytes
font_01_sfnt_off00011cb3.bin
b5a57f28c4f24c92320cb346829688fa8aae56b197e49bdfe2a26a4898db7485		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CB3 10704 bytes

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