Malicious PDF — malware analysis report

Static analysis result for SHA-256 cabd2a6c404c579b…

MALICIOUS

PDF

73.9 KB Created: 2021-02-12 18:32:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 91022f1b9d780d1550de0236d13e3f8f SHA-1: 7a34d6c9b4dcabd5258eab3b866aa36dd367e3b5 SHA-256: cabd2a6c404c579b42495f023ca3eed6e9b2d026b2562722a499e26db7a304b0
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, one of which, 'https://leonvi.ru/wix?keyword=looking+for+alaska+characters+kevin', is directly referenced by a PDF_URI heuristic. This suggests the document is designed to trick users into visiting a potentially harmful website, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/wix?keyword=looking+for+alaska+characters+kevin
    • http://sait-ok.ru/17673331997gy79s.pdf
    • https://nububoreral.weebly.com/uploads/1/3/4/4/134467099/db60e.pdf
    • http://mafaregasinuviv.22web.org/jeruzalem_imdb_parents_guide.pdf
    • http://lnstagramservicecopyrights.com/26610560907mp2c1.pdf
    • https://nuniladolu.weebly.com/uploads/1/3/0/7/130775245/kifopexiligefozuji.pdf
    • http://buybritishcat.com/stochastic_calculus_for_finance7ao33.pdf
    • https://xiwabuba.weebly.com/uploads/1/3/0/8/130813639/01aeab2d1a07.pdf
    • http://klokisik.space/britax_frontier_manual98d41.pdf
    • http://form-lnstagramverificationbadge.com/nigerian_nursery_school_curriculumz5qpz.pdf
    • http://ulekschool.online/35525333129rsb4v.pdf
    • https://sitegevom.weebly.com/uploads/1/3/4/6/134664280/8233891.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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_off0000e50e.bin
2ae5e4533809a5b86f80fd8f1a596c36f28cd53d0b0a8ed4777c891528357db1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE50E 5208 bytes
font_01_sfnt_off0000f6d8.bin
10390376536c62438851cb6cd8ae1eb3a1caf24155ac3a765d435c18f5375b62		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF6D8 10660 bytes

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