Office (OLE) / .XLS malware analysis — malicious · 912944f17119efe4

MALICIOUS

Office (OLE) / .XLS

139.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel

MD5: 44447936a3ea172e1d34dbfb212fc683 SHA-1: 984eeba993e96850c9c538fb2f6d7dd34426dfdd SHA-256: 912944f17119efe419e1aa725b44faa0c982adc1b4e17f561d13807d7c5078b7

180 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.005 Visual Basic

The file is a macro-enabled Excel spreadsheet containing Auto_Open and Auto_Close macros, indicating it is designed to execute code upon opening. The ClamAV detection name 'Doc.Downloader.Docusign112100-9908075-0' strongly suggests a downloader functionality. The VBA code itself appears to be primarily for UI manipulation, but the presence of Auto_Open and the ClamAV signature point to malicious intent, likely to download and execute a second-stage payload.

Heuristics 5

ClamAV: Doc.Downloader.Docusign112100-9908075-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Docusign112100-9908075-0
Auto_Open macro high OLE_VBA_AUTO

Auto_Open macro
Auto_Close macro high OLE_VBA_AUTOCLOSE

Auto_Close macro
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` `cb0cc7d6ec879bf271bfcf7b623b6c4f0acb51f4c4e6846e957b8d4968df2677`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	5181 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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