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

Static analysis result for SHA-256 ffd3b06e5b3d1fa1…

MALICIOUS

Office (OLE) / .DOC

84.0 KB Created: 2020-12-30 06:48:00 Authoring application: Microsoft Office Word
MD5: fb526e1bb4e0347ba0fec40fd8d8ca3a SHA-1: 6023715e2e97e86e765e489ddf8257dcbcd3736b SHA-256: ffd3b06e5b3d1fa12866ad066ef5a975c086c5e34882a09d7c7f25b76a3ddc43
180 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File T1105 Ingress Tool Transfer

The sample is a malicious DOC file containing VBA macros. The 'Document_Open' macro is configured to execute automatically upon opening the document. High-confidence heuristics indicate the use of 'CreateObject' and p-code auto-execution, suggesting the macro's intent is to download and execute a second-stage payload. The embedded URL, though benign, is noted.

Heuristics 6

  • 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 — 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
f392ec7de4bc91e9168573ed3554ded1ffa8839807d0d22211a4c7f8e84a6f24
vba-macro oletools.olevba.extract_macros (decoded VBA source) 6590 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.