Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 36936f52d5add8e8…

MALICIOUS

Office (OLE)

46.5 KB Created: 2008-01-22 18:48:00 Authoring application: Microsoft Office Word
MD5: af5eaa62b618fa0cfd3d6038b8c58bbc SHA-1: 5d5785a2bd09d0fd2848a419d489054e17206c3f SHA-256: 36936f52d5add8e8df91572088d3ebf4c3a43577978c6690322bc5594990452c
180 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature Doc.Trojan.Xaler-1. 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, though containing garbled characters, appears to be a notice regarding a procurement process, suggesting a social engineering lure. The Document_Open macro likely executes a payload, as indicated by the high-severity heuristic.

Heuristics 4

  • ClamAV: Doc.Trojan.Xaler-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Xaler-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
612fd410724bc4ab14c8693295eabfec31cb025c7045044a38abc7d9a9a00e73		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10932 bytes
Detection
ClamAV: Doc.Trojan.Xaler-1
Obfuscation or payload: unlikely

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