Malicious Office (OLE) / .XLS — malware analysis report

Static analysis result for SHA-256 85ff2a9a41fd80ac…

MALICIOUS

Office (OLE) / .XLS

818.0 KB Created: 2006-11-29 14:10:37 Authoring application: Microsoft Excel
MD5: 7b2a5431a2679e88c25abd6753dfab67 SHA-1: 4ec047c7994fe4b7bbdc416f84acd45b887f7426 SHA-256: 85ff2a9a41fd80ac2842ccc5f36a891d804081811c9e85b8064c2f96d7354549
80 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1204.002 Malicious File

The file is an XLS document containing VBA macros, indicated by the OLE_VBA_MACROS heuristic. The OLE_VBA_CREATEOBJ heuristic suggests the macros are attempting to execute code. The presence of 'macros.bas' as an extracted artifact further supports this. The document body describes financial reporting, a common lure for users to enable macros. The macros likely download and execute 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.

FilenameKindSourceSize
macros.bas
1519890064ffac2a025e902ebbf09496fb5c53b1b5134afb50e39612c9978e0c
vba-macro oletools.olevba.extract_macros (decoded VBA source) 91444 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s).