Malicious PDF — malware analysis report

Static analysis result for SHA-256 054137834d54eb7c…

MALICIOUS

PDF

74.6 KB Created: 2021-02-12 23:08:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72c4141bdaf10e90e95efa9d2bb82073 SHA-1: 5f644ceb3a131386d7ecb2d49f751a1083e66e86 SHA-256: 054137834d54eb7c50b752fbd31195ae996571311c6768fcb8614f9453d1c46c
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, specifically as a phishing trojan. It contains an embedded URI pointing to a URL associated with a 'Madden coin hack', indicating a likely social engineering lure. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it is designed to redirect users to a malicious site for fraudulent purposes.

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://seumenha.ru/wix?keyword=madden+coin+hack
    • http://shoppermarket.online/41857535026el5cw.pdf
    • https://cdn-cms.f-static.net/uploads/4475866/normal_600a11966ed4a.pdf
    • http://pizeval.iblogger.org/black_chunky_platform_lace_up_heel_boots.pdf
    • http://mulemepifapevu.iblogger.org/feroxutegejenuvasijix.pdf
    • http://lg-copyrightforms.com/thyroidectomy_dietyhx51.pdf
    • https://static.s123-cdn-static.com/uploads/4373985/normal_5ffd62dba40de.pdf
    • http://gejopuzebizovuk.iblogger.org/housing_development_board_annual_report.pdf
    • https://static.s123-cdn-static.com/uploads/4424683/normal_5ff5c0d296a27.pdf
    • http://epaytds.xyz/effects_of_cyber_bullying_thesisyjbe3.pdf
    • http://crysety.xyz/82382582821faeb8.pdf
    • http://zexofezureza.iblogger.org/71661268401.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://talakukatutevib.epizy.com/jungle_book_bare_necessities_piano_sheet_music.pdf
    • https://s3.amazonaws.com/posaxugidut/zoletuvolexamitesuluzulit.pdf
    • https://s3.amazonaws.com/sefiwegegagu/define_rows_and_columns_in_spreadsheet.pdf
    • http://kizofenumuvuma.epizy.com/72549368186.pdf
    • http://rewogaki.rf.gd/sotovabasofabidatiwujujav.pdf
    • http://duwagisu.epizy.com/86087038960.pdf
    • http://jefeduwikiw.epizy.com/template_function_in_base_class_c.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_off0000e883.bin
3ac10afe49cb5ded2212cf2a64d8fccf04605c4972cf390737af7bb2950bf515		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE883 4788 bytes
font_01_sfnt_off0000f8d6.bin
37e517b9dfe1a1ba2dc64e0b25ebf38d940abdd7318a39b44e78d5f060d89385		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D6 10664 bytes

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