Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 af18264fca32b52c…

MALICIOUS

Office (OLE)

49.0 KB Created: 2004-02-24 16:06:00 Authoring application: Microsoft Word 10.1
MD5: a17552508b3903497b6f17ade370a5cc SHA-1: 5650043ed8b9856b12ff8499e17418f03febaf32 SHA-256: af18264fca32b52c2204bea6e26c2ec7fde29d47d43abb34f2a7976fa85fef1b
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious Link

The file is identified as malicious by ClamAV with the signature Doc.Trojan.Marker-2. It contains VBA macros, specifically a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The document body presents a press release with a URL that likely leads to the download of a secondary malicious payload. The presence of the Document_Open macro and the embedded URL strongly suggest a downloader attack pattern.

Heuristics 4

  • ClamAV: Doc.Trojan.Marker-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Marker-2
  • 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
bd10700919a9a1fcf36965134b11c5196b79f67cd9e3a9e459d9dc3c513eebe2		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4229 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

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