Office (OLE) / .XLS malware analysis — malicious · a498a9a513d71708

MALICIOUS

Office (OLE) / .XLS

37.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel First seen: 2022-05-13

MD5: 3726e5157e55fff82f2d1bf1d7d13c0b SHA-1: f6bf3a42cf9e850788daba4668005952934f4cfc SHA-256: a498a9a513d71708e11369852c68759c982ae223b429d2f6f104ff8963bef34b

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains VBA macros that utilize ShellExecute to run a command. The command is constructed by concatenating 'ping google.com;' with a value from a shape's text frame, and the target executable is obtained via GetObject using a value from cell H100. This indicates the macro is designed to download and execute a second-stage payload. The specific family is not identifiable from the provided evidence.

Heuristics 4

Reference to ShellExecute API high SC_STR_SHELLEXEC

Reference to ShellExecute API
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `ea375e43e0e4a83e4907c6ee333bca16e9988bca13746e7d1c085dd65f408215`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1398 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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