Office (OLE) / .XLS malware analysis — malicious · df99d0dcaeda52f3

MALICIOUS

Office (OLE) / .XLS

954.5 KB Created: 2006-11-29 14:10:37 Authoring application: Microsoft Excel

MD5: 0457ca9303d75fed967a46fe554dc096 SHA-1: 270f24fdbe92e828464333924c714c89c957c2d4 SHA-256: df99d0dcaeda52f39d6482507eaeb3818d5368a0dad2948f748379dc6286b608

80 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file is an Excel spreadsheet containing a large VBA macro, indicated by the OLE_VBA_MACROS heuristic. The presence of an OLE_VBA_CREATEOBJ heuristic suggests the macro attempts to execute code. The document body, while appearing to be financial reporting data, is a common lure to trick users into enabling macros. The extracted artifact 'macros.bas' is likely the malicious VBA code. The macro's intent is to download and execute a second-stage payload, though the specific mechanism is not fully detailed in the provided heuristics.

Heuristics 4

CreateObject call high OLE_VBA_CREATEOBJ

CreateObject 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.
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://activex.microsoft.com/controls/vb6/mscomct2.cab

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `696f9a686e40eb2ceb92d4d85976cdca14c478c8fe05a3558f38c8489d87a957`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	180763 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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