Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 adda82a461f46f66…

MALICIOUS

Office (OLE) / .XLS

111.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel
MD5: dcfe8d6bcd42376d60e7fc42bcc85532 SHA-1: ecfb00341b0052359eed967295dd3dbcfdd5da9f SHA-256: adda82a461f46f66f0ce9a0764dbff2a6d89673cad6ef5eea73706f0b2f7f63e
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1204.002 Malicious File

The file is an Excel 4.0 macro-enabled spreadsheet. Heuristics indicate the presence of dangerous XLM functions like RUN, suggesting the macros are designed to execute arbitrary code. The embedded URL 'http://p-clone.net/ds/021220&C51' is likely used to download and execute a second-stage payload, as indicated by the ClamAV detection name 'Doc.Downloader'. The document body contains strings that may be related to the payload or its execution environment.

Heuristics 5

  • ClamAV: Doc.Downloader.Docusign0521-9864805-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Docusign0521-9864805-0
  • XLM Auto_Open with dangerous formula APIs high OLE_XLM_DANGEROUS_FN
    Excel 4.0 macro sheet contains an Auto_Open / Auto_Close entry and dangerous XLM formula APIs that can invoke programs, write files, or transfer control without VBA.
  • Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN
    Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
  • Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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 http://p-clone.net/ds/021220&C51
    • http://ns.adobe.com/xap/1.0/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/photoshop/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
5b8ee446c468b2ea5bbfe45d64b6176f37697f5e55d56c4e4634d4a3967efbab		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 1800 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s).

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