Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 55991ba2a79731fc…

MALICIOUS

Office (OLE)

36.5 KB Created: 2010-03-30 18:14:00 Authoring application: Microsoft Word 11.3.8
MD5: c5f4c8ff03482f9f808fce03e8380fdf SHA-1: 8cc658a92f41bd0a8d91d8e30014955ceae44fe0 SHA-256: 55991ba2a79731fc102d49d4ca52939326faf83200f560982d0c5983659ed34d
180 Risk Score

Malware Insights

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

The file is an Office document containing VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. The document body presents as an academic assignment, likely to trick the user into enabling macros. The presence of a Document_Open macro strongly suggests the intent is to execute malicious code upon opening the document. No specific family could be identified, and no external IOCs were extracted.

Heuristics 4

  • ClamAV: Doc.Trojan.Marker-40 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Marker-40
  • 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
9e0d3e18f9882a930a68d5ad22424ed151eae70a089b01ba4dcb3f1a542c91f1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 4275 bytes
Detection
ClamAV: Doc.Trojan.Marker-2
Obfuscation or payload: unlikely

Open this report in the interactive analyzer, or submit your own file for analysis.