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

Static analysis result for SHA-256 eaf1e1656888a523…

MALICIOUS

Office (OLE) / .EXE

55.0 KB Created: 1980-01-11 05:34:00 Authoring application: Microsoft Word 8.0
MD5: 41a072df42f77f6916dbddc99a1ebc14 SHA-1: d1d4166c8b8a6dd7125a4819f7b25b783aee257a SHA-256: eaf1e1656888a523685771c8346e41b0abf389b5376b06d35573b9fb595ab31d
360 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file contains VBA macros, with a critical heuristic firing for a Shell() call within the Document_Open auto-execution macro. This indicates the macro is designed to execute commands. ClamAV detections for 'Win.Trojan.KillCMOS-13' and 'Win.Trojan.wmvg-1' on the main file and an extracted artifact further support malicious intent. The presence of the Document_Open macro and the Shell() call strongly suggests the intention to download and execute a secondary payload.

Heuristics 8

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Win.Trojan.KillCMOS-13 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.KillCMOS-13
  • 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
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • 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
e67b233a6bc882b3bd14409c7ddc0b082f24b9a0b10acff996f35e819109dae1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19171 bytes
Detection
ClamAV: Win.Trojan.wmvg-1
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

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