Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 6d9098bfdd4f53f0…

MALICIOUS

Office (OLE)

109.0 KB Created: 2009-12-07 19:13:00 Authoring application: Microsoft Office Word
MD5: 0398191596ea79abbd4efe334b1fb84a SHA-1: 4ee3dd6982c2f53f5959def7f0c776f3275ed951 SHA-256: 6d9098bfdd4f53f02dcbc37efadd2024ecfb977356728d3373fbe3a73f20577c
282 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1547.001 Registry Run Keys / Startup Folder T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open macro that uses the Shell() function. This macro writes its own code to 'c:\evolve.tmp' and attempts to insert it into the Normal.dotm template, indicating a likely attempt at persistence or payload delivery. The ClamAV detections further confirm its malicious nature.

Heuristics 7

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Win.Trojan.Pivis-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Pivis-2
  • 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 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.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
c2c16883c6f7df876972e9d840c314d80fb85a9a6de7f9ab5ef94c549463f007		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 51050 bytes
Detection
ClamAV: Doc.Trojan.Ethan-3
Obfuscation or payload: unlikely

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