Office (OLE) / .XLS malware analysis — malicious · 0f041d3c2693c926

MALICIOUS

Office (OLE) / .XLS

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

MD5: 9c632547961e7f9b716dcacc751a26e9 SHA-1: 5067d48c3c3d8502116bc01953675b977a01086f SHA-256: 0f041d3c2693c9265de8be4795206ccf889aa8f3b7c7b551f8f0982ce834dbbe

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.005 Visual Basic

The sample is an Excel 4.0 macro-enabled spreadsheet that uses an Auto_Open macro to execute. It impersonates DocuSign to lure the user into enabling macros, a common social engineering tactic. The embedded XLM macros are designed to download a second-stage payload from one of the provided URLs.

Heuristics 4

Excel 4.0 Auto_Open defined name critical OLE_XLM_AUTOOPEN_DEFINEDNAME

oletools recovered an Auto_Open / Auto_Close entry from an Excel 4.0 macro sheet. The raw BIFF name can be tokenized or partially opaque to byte-string checks, but the recovered macro listing confirms the workbook has an XLM auto-execution entry.
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.
Macro/content-enable lure medium SE_ENABLE_LURE

Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
Document signing service impersonation lure medium SE_DOCUSIGN_LURE

Document impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`xlm_macros.txt` `2ecdf8a516f9946ab72f25bff619b0bf82145c1cc4785f70a8894507cc56feeb`	xlm-macro	oletools.olevba.extract_all_macros (XLM macro listing)	2730 bytes

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