Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 3bc489522bbb4542…

MALICIOUS

Office (OLE)

44.0 KB Created: 2008-12-29 05:08:00 Authoring application: Microsoft Word 10.1
MD5: 231b4375880efb20f97674e9780fbaaf SHA-1: b09dd181a01b979160b3cc7beedd9fe874beeef4 SHA-256: 3bc489522bbb45421743814b8498344bcf1e356d020fb5820665f9eee0f69911
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening. The document body is presented as a science class planning sheet, likely a lure to encourage the user to open and interact with the malicious content. The presence of a Document_Open macro indicates an attempt to automatically run code, likely for further payload delivery or system compromise.

Heuristics 4

  • ClamAV: Doc.Trojan.Marker-40 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Marker-40
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
ce55698bba2b53fb3cf8cf54f47838f1de2696c76d813a9ad733f268c594fc38		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4250 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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