Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 091534d6990a6d08…

MALICIOUS

Office (OLE)

38.0 KB Created: 2009-09-11 02:14:00 Authoring application: Microsoft Word 11.1
MD5: 87a8ba81c1bf25c7f54216ea2591fa8d SHA-1: 4ad0714540262b662b1e3c87b7362ca51d85ca79 SHA-256: 091534d6990a6d0817adb68a40fc68956002daff86073fc6379d2a84794108c4
180 Risk Score

Malware Insights

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

The sample contains VBA macros, specifically a Document_Open macro, which is a strong indicator of malicious intent. The ClamAV detection 'Doc.Trojan.Thus-10' further confirms its malicious nature. The macro likely attempts to download and execute a secondary payload, a common technique for malware distribution.

Heuristics 4

  • ClamAV: Doc.Trojan.Thus-10 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Thus-10
  • 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
028c8e42946ac794ef1875de0da25a1a8e300bef81c9a89b9114e12bb7d8afad		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2372 bytes
Detection
ClamAV: Doc.Trojan.Thus-10
Obfuscation or payload: unlikely

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