Office (OLE) / .XLS malware analysis — malicious · ecdbff79180b1bcb

MALICIOUS

Office (OLE) / .XLS

452.0 KB Created: 2020-10-14 21:54:17

MD5: 17485cb1c1ed12d50b58ce0511df1d35 SHA-1: abeb0fdb2497347ca5d593a3c049f886eb0ccfe4 SHA-256: ecdbff79180b1bcb2e1c94358c866f84a5be25ad30247c37d0e9987de825a558

220 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a macro-enabled Excel file containing a Workbook_Open macro. This macro executes a PowerShell command that downloads a file from 'http://weeshoppi.com/wp-includes/ID3/z/008137.jpg' and saves it as 'C:\Users\Public\Pictures\bpgubbq.exe'. The PowerShell command then executes the downloaded file. This indicates a downloader or droppper functionality.

Heuristics 7

Reference to PowerShell high SC_STR_POWERSHELL

Reference to PowerShell
Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND

Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
Suspicious extracted artifact high 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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.

URL http://weeshoppi.com/wp-includes/ID3/z/008137.jpg

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `91d1475ae443bbd189d64f87b0953635fc6a0265f46def542867dce8773b5f6d`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1776 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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