Office (OLE) / .XLS malware analysis — malicious · 1dc2aee5881747c7

MALICIOUS

Office (OLE) / .XLS

32.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel First seen: 2022-09-14

MD5: e5ff5e00cc7c9a32976350ee874bf0c2 SHA-1: 6a3c9e7d2650079e7aa28adb92b206175a99eb3e SHA-256: 1dc2aee5881747c7146461ddc420a28409ff530359971b2378c92baed9d0206e

100 Risk Score

Malware Insights

MITRE ATT&CK

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

The embedded VBA macro contains obfuscated PowerShell code. This code, when deobfuscated, constructs a URL and a filename to download and execute a VBScript from the temporary directory. The script is designed to download a second-stage payload from the specified URL, indicating a downloader or droppper functionality.

Heuristics 3

Reference to PowerShell high SC_STR_POWERSHELL

Reference to PowerShell
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `ea690aa74dede1c576dab8aafc907c53ea4d1f6f7b29a4c39462fbc27131e326`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1380 bytes

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