Office (OLE) / .XLS malware analysis — malicious · aac4306081601e36

MALICIOUS

Office (OLE) / .XLS

32.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel First seen: 2022-08-23

MD5: d3e8a93891ba4b0767c71eb47fe620d4 SHA-1: 05f0ebc56db34620d5cf8236d9b62db82beda6fb SHA-256: aac4306081601e368c390fe668651116fdafe751056564fb94857dbfe98ea037

100 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.005 Visual Basic

The VBA macro contains obfuscated PowerShell code that, when deobfuscated, attempts to download a VBScript from 'http://denik.kt/abilaba/protector/Client.vbs' and save it as '%TEMP%\notepad.vbs'. The script then executes this downloaded payload. The CreateObject heuristic and the PowerShell reference strongly indicate this malicious behavior.

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` `f791e624d06b7d6203781a494f0b8af78a901da9d778514643843c925c3dc2fd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1377 bytes

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