Office (OLE) / .XLS malware analysis — malicious · eed9bdcfca664e0a

MALICIOUS

Office (OLE) / .XLS

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

MD5: 540999f961998bbff838f827aaae8223 SHA-1: 4a864c970f07b1e55bb62d3e1352419013cb66ad SHA-256: eed9bdcfca664e0a23c068563c287976eb936b7a9dfc35480b1a986e3dd04f52

80 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate or Decode Files or Information

The sample is an Excel file containing a large VBA macro, indicated by the OLE_VBA_MACROS heuristic. The OLE_VBA_CREATEOBJ heuristic suggests the macro attempts to execute code. The DOC BODY content describes financial reporting, a common lure for malicious documents. The presence of 'macros.bas' as an extracted artifact further supports the macro-based execution. The macro likely downloads and executes a second-stage payload, though the specific mechanism is not fully detailed in the provided evidence.

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` `dda8fa1bae2b3bcfaf67bc365a2fdcdf8848712d1d28393cdccee0dd030c0e03`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	95180 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s).

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