Office (OLE) / .XLS malware analysis — malicious · f8d06c20dc2af83a

MALICIOUS

Office (OLE) / .XLS

70.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel

MD5: df41fbe24e3411bb8bcf2b2ed60b84ca SHA-1: 81cadbe66ad8d6d46a5629047f59045cca38aabf SHA-256: f8d06c20dc2af83af29551f384bbde4e5380911d8db0f9e56ca549bb5995d413

120 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1219 Remote Access Software

The critical ClamAV heuristic identifies this file as Xls.Malware.Valyria-10012971-0, indicating a known malicious Excel variant. The presence of VBA macros and a high-severity heuristic for GetObject calls strongly suggests the macros are intended to execute malicious code, likely by leveraging Windows Script Host or similar mechanisms to download and run a second-stage payload. The specific family could not be determined from the available heuristics.

Heuristics 3

ClamAV: Xls.Malware.Valyria-10012971-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Malware.Valyria-10012971-0
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `b9928d3af8219b1495e4f8ad8b55f03f0b69edb0d832616a35fa2fb26b1945a2`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1818 bytes

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