Office (OLE) / .XLS malware analysis — malicious · 3d14ee4410d918f1

MALICIOUS

Office (OLE) / .XLS

99.5 KB Created: 2022-09-20 07:24:03 Authoring application: Microsoft Excel First seen: 2022-09-20

MD5: a5dc95e013b5d0138ad6df3c7d667c6c SHA-1: 4946fa68808b022e3960eed2ff5077eada1d5310 SHA-256: 3d14ee4410d918f1cfd7ea7ce585e3d5dff222c2d8d7a91767f27a61e8c6da4c

188 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1105 Ingress Tool Transfer T1059 Command and Scripting Interpreter

The sample is an Excel file containing VBA macros. The macros utilize the URLDownloadToFile API to download a second-stage payload from a remote source. The presence of CreateProcess API references suggests the downloaded payload will be executed. The document body '2022_settembre' is likely a lure, and the macros are designed to facilitate a download and execute attack.

Heuristics 5

Reference to URLDownloadToFile API critical SC_STR_URLDOWNLOAD

Reference to URLDownloadToFile API
URLDownloadToFile in VBA critical OLE_VBA_DOWNLOAD

URLDownloadToFile in VBA
Reference to CreateProcess API high SC_STR_CREATEPROCESS

Reference to CreateProcess API
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Environ() call (env variable access) low OLE_VBA_ENVIRON

Environ() call (env variable access)

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `0f6398755668acff99ab07b3695ce6c4f9a8fa87d7304e1f17966737d53ebcac`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10512 bytes

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