Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 9b3d836b7726defc…

MALICIOUS

Office (OLE)

58.0 KB Created: 2009-03-18 04:48:00 Authoring application: Microsoft Word 11.3.5
MD5: 9707b156a51d199045ea16bc94e24093 SHA-1: dc388a8e12e6490b805f5da01c7af58a77f2e675 SHA-256: 9b3d836b7726defc7ee41b7ecf7e2bbbd1666b51febc3f7e25932d6873188dff
180 Risk Score

Malware Insights

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

The file is an OLE document containing VBA macros, specifically a Document_Open macro, which is a common delivery mechanism for malware. The document body presents a plausible lure, an application for a freshman orientation program, to trick the user into enabling macros. The presence of a Document_Open macro suggests the intent is to execute malicious code upon opening the document. The ClamAV detection 'Doc.Trojan.Thus-8' further confirms its malicious nature.

Heuristics 4

  • ClamAV: Doc.Trojan.Thus-8 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-8
  • 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
7fc00c072a2d143f2176669597f1ff0cf43c86b4ffbfc8158a62caf856a9072e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2356 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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