Office (OLE) / .XLSX malware analysis — malicious · b90241c2ede9a20f

MALICIOUS

Office (OLE) / .XLSX

332.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 41c31c12b519cc3857718f8a12175b07 SHA-1: acdc4d7ba66b6a5fddb0af05fb8dae82c1a3e3d4 SHA-256: b90241c2ede9a20f7b28bf3a5390c07f6356425f11f07ef7e621cad9f4149fb9

160 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1204.002 Malicious File

The file contains Excel 4.0 macros, indicated by the OLE_XLM_AUTOOPEN and OLE_XLM_DANGEROUS_FN heuristics. The SC_STR_SHELLEXEC heuristic confirms the use of the ShellExecute API, which is often used to download and execute secondary payloads. The embedded URL is likely part of this download mechanism. The ClamAV detection further supports the malicious nature of the file.

Heuristics 5

ClamAV: Doc.Downloader.Docusign0521-9864805-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Docusign0521-9864805-0
Reference to ShellExecute API high SC_STR_SHELLEXEC

Reference to ShellExecute API
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.
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://maharishijeevan.com/ds/151120.gif�

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`xlm_macros.txt` `4d5531650e0faf8764ddd7b14e6947143c32308cbf699d36f8845764b3b4560a`	xlm-macro	oletools.olevba.extract_all_macros (XLM macro listing)	5603 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.