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

Static analysis result for SHA-256 599fa4c2303cc949…

MALICIOUS

Office (OLE) / .PPS

5.39 MB Created: 2007-11-02 18:30:08 Authoring application: Microsoft Office PowerPoint
MD5: 1989a59634b403b8863657a5170239e7 SHA-1: a8ab8fa1653a34c635e740e2f39d5b8536090ae8 SHA-256: 599fa4c2303cc949bb01b03f4228bf4341f038e79cb8721f41b7ab5416730a81
260 Risk Score

Malware Insights

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

The sample was detected as malicious by ClamAV with multiple signatures, including 'Win.Trojan.Tristate-2' and 'Doc.Trojan.Tristate-1' on an extracted artifact. Heuristics indicate the presence of VBA macros, including CreateObject and GetObject calls, and suspicious obfuscation techniques within the 'macros.bas' file. The document body content appears to be organizational information and does not directly indicate malicious intent, but the strong heuristic and AV detections point to a malware delivery mechanism.

Heuristics 7

  • ClamAV: Win.Trojan.Tristate-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Tristate-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.
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • 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
  • 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://www.iec.ch

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
73c284aa8fcc16bdba3cf4d5efde7765304466330238914b8f1f18466d96b4f7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 41097 bytes
Detection
ClamAV: Doc.Trojan.Tristate-1
Obfuscation or payload: likely
Carved artifact contains 36 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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