Office (OLE) / .XLS malware analysis — malicious · 4de0633706313407

MALICIOUS

Office (OLE) / .XLS

423.0 KB Created: 2009-08-31 09:03:10 Authoring application: Microsoft Excel

MD5: 8e0a264a4aaec0f06dd67132ec630b67 SHA-1: 103d652cb031e1fbabeff7ce083ff39a17b97af7 SHA-256: 4de0633706313407ea133b0c7d65ddf82f3b1222ae852dd4d837a047b4f11d69

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is an Excel spreadsheet containing VBA macros, specifically an Auto_Open macro, which is a common technique for executing malicious code upon opening. ClamAV detections indicate this is a known malware variant. The macros are likely responsible for downloading and executing a secondary payload, as suggested by the 'Xls.Trojan.Escape-1' detection.

Heuristics 4

ClamAV: Ppt.Malware.Laroux-10036124-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Ppt.Malware.Laroux-10036124-0
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
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` `dc7064d775443ce095d0598c72b0d787d2153f42eea5eb41b533e822b9afda36`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2292 bytes
Detection ClamAV: Xls.Trojan.Escape-1 Obfuscation or payload: unlikely

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