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

Static analysis result for SHA-256 39a3f17a9e638db2…

MALICIOUS

Office (OLE) / .XLS

1.39 MB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel
MD5: 0e68de03ee72f5d586cbe670ebdbfe71 SHA-1: a4a64877de3884a0f9998dae44740d153e9e221f SHA-256: 39a3f17a9e638db2bde8d6702eb3dd618a6f70daaed732493383745688547293
188 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature Xls.Malware.Exvk-9785252-0. It contains VBA macros, including CreateObject and CallByName functions, which are commonly used for malicious purposes. The document employs a lure to trick users into enabling macros, a typical technique for malware droppers. No specific second-stage payload URL or execution details were extracted from the provided evidence.

Heuristics 7

  • ClamAV: Xls.Malware.Exvk-9785252-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Malware.Exvk-9785252-0
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • CallByName call high OLE_VBA_CALLBYNAME
    CallByName call
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
62ad0b6dd051e43985f4df0e703aa41b4a769b72d9ea141ab3d437fc063127a1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3777 bytes

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