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

Static analysis result for SHA-256 a459faafee79bb46…

MALICIOUS

Office (OLE) / .DOC

50.0 KB Created: 2010-09-23 07:34:00 Authoring application: Microsoft Word 11.5.6
MD5: 2a7a0139a9742f6d195e24f737330949 SHA-1: 4dbd6fc10dca74c6ef378859bc1ec1c33cd0378c SHA-256: a459faafee79bb46669b26eaad47f5901092e7e8cfc420ab1e08d0517da4d3e9
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1204.002 Malicious File

The file is a Microsoft Word document containing VBA macros, specifically a Document_Open macro, which is a common technique for initiating malicious activity upon opening. The document body presents a plausible interview schedule, likely a lure to trick the user into enabling macros. The presence of a Document_Open macro strongly suggests the intent is to execute code, likely to download and execute a second-stage payload. 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
a09487bb77e924027dfd80f4e09f68cab5a63d89c0f2e7b48b1f62c91d457407		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2373 bytes
Detection
ClamAV: Doc.Trojan.Thus-8
Obfuscation or payload: unlikely

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