Office (OLE) / .XLS malware analysis — malicious · 9960efee6ac022a5

MALICIOUS

Office (OLE) / .XLS

3.11 MB Created: 2007-05-24 13:53:25 Authoring application: Microsoft Excel

MD5: f8e6104d7ce80e72e50b289bbcd0a686 SHA-1: d0b61dc44e0ce794a0e31be821c04e9a9b5d758c SHA-256: 9960efee6ac022a561ab75e2bc8d3e5ab06675c2cfce5fb8ff7342e4abcad99b

100 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic

The sample is an Excel spreadsheet containing a large, obfuscated VBA macro. The Workbook_Open heuristic indicates the macro executes automatically upon opening. The presence of script obfuscation indicators and the embedded URL suggest a downloader or droppper functionality. The macro's intent is likely to download and execute a second-stage payload from the embedded URL.

Heuristics 4

Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
Suspicious extracted artifact high 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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
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://www.colorschemer.com/online.html

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `5d165ca0df6769d260b5ff2986f147008a29da2a2d135dacd2922d249364b67e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	638107 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 eval/decoder/string-building token(s). Carved artifact contains 38 Chr/ChrW string-construction calls.

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