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

Static analysis result for SHA-256 e47945f9cc50bb91…

MALICIOUS

Office (OLE) / .DOC

66.0 KB Created: 2018-04-19 18:59:00 Authoring application: Microsoft Office Word
MD5: 33575d5c909b3ef6bddcad424a8ca385 SHA-1: 37cdb5d3cdf3ce24fac08956fc88a6569e99e7bc SHA-256: e47945f9cc50bb911242f9a69fc4177ed3dcc8e04dbfec0a1d36ff8699541ab5
240 Risk Score

Malware Insights

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

The file contains a VBA macro, specifically an AutoOpen macro, which is a common technique for executing malicious code upon opening a document. The presence of CreateObject calls and p-code execution further indicates malicious intent. While no specific URLs or executable payloads were directly extracted, the heuristics strongly suggest the macro's purpose is to download and execute a second-stage payload. The ClamAV detection confirms its malicious nature.

Heuristics 7

  • ClamAV: Doc.Malware.Generic-7639395-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-7639395-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen 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
  • 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
    • http://schemas.openxmlformats.org/officeDocument/2006/bibliography
    • http://schemas.openxmlformats.org/officeDocument/2006/customXml

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
0436618b2179873b19221e47d00f9eb60be297c79bcd60ecf787996f3d5cd17f		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2138 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 long base64-like blob(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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