Doc.Trojan.Panther-2 — Office (OLE) malware analysis

Static analysis result for SHA-256 5ef9acdb471359bb…

MALICIOUS

Office (OLE)

433.0 KB Created: 2004-02-20 03:44:00 Authoring application: Microsoft Word 8.0
MD5: 01cd898ba319363700f80bec5358765d SHA-1: 3ba21daf1002698e2cb61f83309da2e4826f9c31 SHA-256: 5ef9acdb471359bb4488febd6b9e7b54c9c883f911017c3a9d428dfecd7856b8
360 Risk Score

Malware Insights

Doc.Trojan.Panther-2 · confidence 95%

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

The sample is a malicious Office document containing VBA macros, specifically triggering AutoOpen and Document_Open events. The macros attempt to modify the Normal template and execute arbitrary code using the Shell() function, indicating a downloader or backdoor functionality. The ClamAV detection name 'Doc.Trojan.Panther-2' further supports its classification.

Heuristics 8

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Trojan.Panther-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Panther-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.
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • Auto_Close macro high OLE_VBA_AUTOCLOSE
    Auto_Close 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
f047e3c83f45ecc79e46f50988c43722d314350c38b6eef1d251ff91368be284		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 53640 bytes
Detection
ClamAV: Doc.Trojan.Panther-2
Obfuscation or payload: unlikely

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