Malicious Office (OLE) / .EXE — malware analysis report

Static analysis result for SHA-256 0ccb558521902d30…

MALICIOUS

Office (OLE) / .EXE

33.5 KB Created: 1999-02-19 08:44:00 Authoring application: Microsoft Word 8.0
MD5: 2f0d035b696d3f9926e7de050797cae9 SHA-1: 3a53844a7e2dd735011ff7b303843e62cfed3ae7 SHA-256: 0ccb558521902d305b9e21dbdbee1072959e02068cd078fe28601d0bd5caa425
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic

The sample contains VBA macros that are designed to write their own code to a file named 'c:\ethan.___' on the local filesystem. This file is then likely executed to download and run a second-stage payload. The ClamAV detection of 'Doc.Trojan.Ethan-20' further supports the malicious nature of this file.

Heuristics 3

  • ClamAV: Doc.Trojan.Ethan-20 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Ethan-20
  • 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.
  • 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
99611d276572b7cc53950d4f418e15a64b81f374105b4150a18b13b51d529250		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 6170 bytes
Detection
ClamAV: Doc.Trojan.Ethan-1
Obfuscation or payload: unlikely

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