Office (OLE) / .XLS malware analysis — malicious · f5190d29af5ba58c

MALICIOUS

Office (OLE) / .XLS

36.5 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel

MD5: 0f49e06aaab8816a9d95815e749fb291 SHA-1: e124c99646e1d7fa682e465630eda2159172dcb1 SHA-256: f5190d29af5ba58c45b138751593e2f5ed014d42e5c37f05f6ea98ee8838c9e2

300 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1059.003 Windows Command Shell T1204.002 Malicious File

The sample is an Excel file containing VBA macros. Heuristics indicate the use of WScript.Shell and the Shell() function, suggesting the macro attempts to execute commands. The ClamAV detection name 'Xls.Dropper.Agent-7601885-0' strongly implies a dropper functionality, where the primary goal is to download and execute a secondary payload. No specific URLs or further execution details were extracted, but the dropper nature is clear.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
WScript.Shell usage critical OLE_VBA_WSCRIPT

WScript.Shell usage
ClamAV: Xls.Dropper.Agent-7601885-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Xls.Dropper.Agent-7601885-0
Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
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` `84c7aaa2c2a662cc880e1aee2d069eb84b4e003efa92f5177f7b9b23d1d52885`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	2164 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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