Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 44f00c206ece6a84…

MALICIOUS

Office (OLE)

90.5 KB Created: 2010-04-01 13:32:00 Authoring application: Microsoft Word 11.5.6
MD5: 05bf2c11f0f2b647e51a17b97af6551d SHA-1: f409309de8299517a6ce4a031445cf911d6b8d3a SHA-256: 44f00c206ece6a848e2e8b7edb7eb1de3f52dbc32746551eaefe4b32bdcf5121
140 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV with the signature Doc.Trojan.Ethan-1. It contains VBA macros, which are a common delivery mechanism for malware. The document body presents a table of contents for educational materials, a common lure to trick users into enabling macros. The macros are likely responsible for downloading and executing a second-stage payload.

Heuristics 3

  • ClamAV: Doc.Trojan.Ethan-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Ethan-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.
  • 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
96f65c25163fe74a4e1a757154cf7ac5ea85f68781b57ae5a21d734589382608		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1667 bytes
Detection
ClamAV: Doc.Trojan.Ethan-1
Obfuscation or payload: unlikely

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