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

Static analysis result for SHA-256 4e8a2b592ed90ed1…

MALICIOUS

Office (OLE) / .DOC

154.0 KB Created: 2020-11-18 07:48:00 Authoring application: Microsoft Office Word
MD5: a2707bfb35c9fed11d81949873d3a00a SHA-1: d450b0efac0c3bb84e22270c8d76cc02f000bdcb SHA-256: 4e8a2b592ed90ed13eb604ea2c29bfb3fbc771c799b3615ac84267b85dd26d1c
188 Risk Score

Malware Insights

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

The sample is a malicious Word document containing VBA macros, specifically a Document_Open macro that uses CreateObject. This indicates the macro is designed to execute automatically upon opening the document. The document body explicitly instructs the user to 'enable editing' and 'enable content', a common social engineering tactic to bypass security warnings and execute the malicious payload. The embedded URL is highly suspicious and likely serves as a download or command-and-control endpoint.

Heuristics 7

  • 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
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • 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 https://cmႬႮႰ჆჈჌ᄮᄰᅂᆀᆂᆊᇔᇖᇠᇢ짖훉짉짖훉³ᔫ띨ꬅᘀ彨䉿
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
0228dd7d4a976e86394acaf294593bbfeb4dd342d3e0ef5720e1bdbc7160a660		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 13575 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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