Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 e96faedf5e35fb28…

MALICIOUS

Office (OLE)

42.0 KB Created: 2010-08-24 15:45:00 Authoring application: Microsoft Word 11.5.6
MD5: af326d5d2c6b46799cb0522731ec7990 SHA-1: c843c64aef09c4500c5cbaff6bb9f08826a8b96a SHA-256: e96faedf5e35fb28800b3cbdaf3db81240e71164822654d57f1a1e9e7f25f2d2
240 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell

The file is an OLE document containing VBA macros. Heuristics indicate the presence of a Shell() call within the VBA code, suggesting an attempt to execute arbitrary commands. ClamAV detection as 'Doc.Trojan.Ded-1' further confirms its malicious nature. The document body presents a seemingly legitimate letter, likely a lure to encourage macro execution.

Heuristics 5

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Trojan.Ded-1 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Ded-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.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • 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
759ab3055397b08c116e39154ae9049fd9e248b0691005d2af2badf8ed609d78
vba-macro oletools.olevba.extract_macros (decoded VBA source) 4318 bytes
Detection
ClamAV: Doc.Trojan.Ded-1
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.