Office (OLE) / .XLS malware analysis — malicious · a5993dd89586c0e0

MALICIOUS

Office (OLE) / .XLS

37.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel First seen: 2022-05-12

MD5: d69ed47dd254fc8a6f7bc2523f6261b4 SHA-1: cad4beb82571e79c25b603e26d0a4cc93e7b0e53 SHA-256: a5993dd89586c0e0607c539454007bad0ac789e6e6ce7e2ec580c0c42dfca38b

120 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is an Excel file containing VBA macros. The macro code utilizes ShellExecute to run a command constructed from concatenated strings and a shape name. Specifically, it calls ShellExecute with the command 'pShape 1ping google.com;dsfsdfee'. This indicates the macro is designed to execute arbitrary commands, likely to download and run a second-stage payload. The GetObject call and reference to ShellExecute API are high-confidence indicators of malicious intent.

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` `8830ede563e52210c185cca0f7757cc349ac9918dbc447466836e370f034f476`	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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