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

Static analysis result for SHA-256 424294270456402b…

MALICIOUS

Office (OLE) / .DOC

359.5 KB Created: 2021-06-14 09:57:00 Authoring application: Microsoft Office Word
MD5: e681f580f76279e4bd4b5cdbf0b90787 SHA-1: 21f1b18e94eeb7c566af3c843540ee31696f82d9 SHA-256: 424294270456402b218aef56ae34693622efb4f70861578c6114869a975f3743
222 Risk Score

Malware Insights

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

The sample is a malicious OLE document containing VBA macros. The 'Document_Open' macro is present and uses 'CreateObject', indicating an attempt to execute code. The heuristics suggest the macro is designed to download and execute a second-stage payload, which is a common delivery mechanism for malware. No document body text was available for analysis.

Heuristics 7

  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • 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
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.
    URL http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
689e97edf49a7ca21aa4e858b15c7a9f9dbe9290732440e292a668d23c6d5168
vba-macro oletools.olevba.extract_macros (decoded VBA source) 860 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 9 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.