Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 a2444c6576fd000c…

MALICIOUS

Office (OLE)

36.0 KB Created: 2007-08-22 15:01:00 Authoring application: Microsoft Word 11.3.5
MD5: 54c0b211deb1893eeb4903ac38553bce SHA-1: 827b6c1a883637b7bc7e6f85ae4d4ac01faf4a03 SHA-256: a2444c6576fd000c12262239bb66e3930b96ddb09df931934ab637f385e53fb0
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening. ClamAV signatures also confirm its malicious nature. While the document body discusses school science course expectations, the presence of the Document_Open macro indicates a malicious intent to execute code, likely to download and run a secondary payload.

Heuristics 4

  • ClamAV: Doc.Trojan.Eight941-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Eight941-1
  • 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
549bc4cc40e974433e8de5583b5f6ce79c29971cca271e66c629ee6fc496ffe1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2844 bytes
Detection
ClamAV: Doc.Trojan.Eight941-1
Obfuscation or payload: unlikely

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