Office (OLE) / .XLS malware analysis — malicious · 44281150205cf371

MALICIOUS

Office (OLE) / .XLS

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

MD5: fc193ae552865840c39ff1d30863bb90 SHA-1: e0b1b520674f015a0148bf37d1ee1fb69d88d439 SHA-256: 44281150205cf371664775e1279041506c6bdef8fcabcd0cd219c2939512c48b

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains VBA macros that utilize ShellExecute and CreateObject, indicating an attempt to execute arbitrary code. The presence of a 'macros.bas' file further supports this. The obfuscated document body content does not provide specific lures, but the macro's functionality strongly suggests it acts as a downloader for further malicious activity.

Heuristics 4

Reference to ShellExecute API high SC_STR_SHELLEXEC

Reference to ShellExecute API
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Suspicious extracted artifact medium EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `6dba996c3bae5e6e6029686bed4ca8ac8a998b2dcf6faa7682e90a66c464c135`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1350 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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