Office (OLE) / .XLS malware analysis — malicious · e76673f5df9b6041

MALICIOUS

Office (OLE) / .XLS

54.0 KB Created: 2021-03-31 11:03:48

MD5: e981e9c212851c62215c4aeec65d1118 SHA-1: 6fca57b8b8d988a35cde6c1b68b3dc1edaf648cb SHA-256: e76673f5df9b6041200b28d7c8622d77477ee078eaab07273920dd932403c041

160 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1059.001 PowerShell

The presence of Excel 4.0 (XLM) and VBA macros, along with a critical heuristic firing for URLDownloadToFile, indicates a malicious intent. The VBA macro attempts to download a second-stage payload from a URL, which is a common technique for delivering malware. The document body contains obfuscated text that appears to be part of a lure, possibly related to billing or payments.

Heuristics 4

Reference to URLDownloadToFile API critical SC_STR_URLDOWNLOAD

Reference to URLDownloadToFile API
URLDownloadToFile in VBA critical OLE_VBA_DOWNLOAD

URLDownloadToFile in 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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`xlm_macros.txt` `dd0b0d5568b93d5cbe3417cc64209fece3981e3362b24e5d68eaa284315b7540`	xlm-macro	oletools.olevba.extract_all_macros (XLM macro listing)	686 bytes
`macros.bas` `35fb6a16f5fe320dd3eb1ab6e63570c1b01582ba7f735952a25d5316371188db`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2865 bytes

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