Malicious PDF — malware analysis report

Static analysis result for SHA-256 07f9af27680d3783…

MALICIOUS

PDF

72.6 KB Created: 2021-03-29 01:00:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8beabfed72f070d4da4f62d2194a6a8b SHA-1: ee5e70128546b91303aa73e3c8adf0996b6e69c2 SHA-256: 07f9af27680d37838735fe7cb4a462efe2cf61983f9bc9bb0f0ddd95e751e90e
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://botokaw.ru/aws?utm_term=your+perfect+right+alberti', which is a strong indicator of a phishing or malware distribution attempt. The document body is heavily obfuscated, suggesting an attempt to hide its true nature.

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://botokaw.ru/aws?utm_term=your+perfect+right+alberti
    • https://static.s123-cdn-static.com/uploads/4392871/normal_6008dbb2895d4.pdf
    • https://cdn-cms.f-static.net/uploads/4494436/normal_6027b2fbd9f65.pdf
    • http://help-feedback-amzn3.xyz/betrayal_at_house_on_the_hill_widows_walk_rules906w2.pdf
    • https://static.s123-cdn-static.com/uploads/4419437/normal_5fe54e8315a8a.pdf
    • http://greyfruit.space/nitesozatuzukiwuraskjv2.pdf
    • https://cdn-cms.f-static.net/uploads/4495385/normal_605f4418a476f.pdf
    • http://milansit.space/a_series_of_unfortunate_events_the_wide_window_quotesjq6o8.pdf
    • http://kidepokapila.22web.org/sutojudusumufotunenisigen.pdf
    • https://cdn-cms.f-static.net/uploads/4460043/normal_5fe6caec8a472.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jazuravazaguz/chota_bheem_himalayan_adventure_full_movie.pdf
    • http://tukudapig.epizy.com/stylesheet_not_working_on_server.pdf
    • http://lememisuxelivem.rf.gd/63818030474.pdf
    • http://kababotatage.epizy.com/47566832077.pdf
    • https://uploads.strikinglycdn.com/files/7f6920fd-1843-45ea-80b4-8f3c3168faf1/73657251994.pdf
    • https://s3.amazonaws.com/kotodur/multiple_streams_of_income_book.pdf
    • https://s3.amazonaws.com/telasebisu/juraderalukiwo.pdf
    • https://s3.amazonaws.com/bupaxomu/sinonimos_de_la_palabra_languidecer.pdf
    • https://s3.amazonaws.com/jolunenafobuw/84598545853.pdf
    • https://uploads.strikinglycdn.com/files/65ff31bd-f57c-4095-8fa0-cbaf562bbbf3/vizio_model_e48-c2_user_manual.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_off0000de13.bin
d18b64ea508277a4738a2f96ed569cbb7c0584d7a6cbfdddc34971e7214f5ad6
pdf-font-stream PDF embedded font (sfnt) at offset 0xDE13 5200 bytes
font_01_sfnt_off0000efc4.bin
bd13c1d1e1f42f0f1d0386ef7d857b526328b570cdd52f5f87bb6a676ca690fb
pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC4 10544 bytes