Office (OLE) / .XLS malware analysis — malicious · cee6211a1608d1df

MALICIOUS

Office (OLE) / .XLS

452.0 KB Created: 2020-10-07 01:03:09

MD5: 59e051692b56f9f645bf2b52dceae0d8 SHA-1: bc24c9aad8122a23b9da1d8d958867283a9222d2 SHA-256: cee6211a1608d1dff15afbdaffba33e5f59b569cf7b25610dba90a0db4005ca4

140 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1105 Ingress Tool Transfer

The Workbook_Open macro is triggered upon opening the XLS file. This macro executes a PowerShell command that downloads a file from 'http://18.196.157.86/T/JFJ-06410.jpg' and saves it as 'C:\Users\Public\Pictures\aczmfeieg.exe'. Subsequently, it executes the downloaded file. This indicates a downloader or droppper functionality.

Heuristics 4

Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `26c1ca093b613cbcc7fa1e3b4821b4dddee9cb30250d59c9016a5de6a9399fd0`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1259 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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