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

Static analysis result for SHA-256 2bbc2dd5e5bf5ab2…

MALICIOUS

Office (OLE) / .DOC

211.0 KB Created: 2021-10-21 10:52:00 Authoring application: Microsoft Office Word First seen: 2021-10-26
MD5: ca859bd419fd79ad1f2f8552faae1ee7 SHA-1: de0918238da993e991118305188e153b8aa4078c SHA-256: 2bbc2dd5e5bf5ab22b736c2e3e958425c47b25005543ec19ef2a14a725105252
64 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The file is a Microsoft Office document containing an embedded OLE package, identified as 'ole10native_00.bin'. This package is flagged as risky because it carries an executable or script file type, likely a JAR file. The presence of this embedded artifact strongly suggests an attempt to deliver a secondary payload. No document body text or scripts were extracted, limiting further analysis of the specific lure or payload functionality.

Heuristics 3

  • Ole10Native package drops an auto-executable payload critical OFFICE_PACKAGE_RISKY_FILE
    OLE Package displayName or fullPath ends in a directly auto-executable extension (a runnable binary or a script the default shell host runs on double-click). Embedding such a payload inside an Office document has no benign authoring use — it is a malware-delivery dropper.
  • Suspicious extracted artifact info 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.
  • 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 In document text (OLE body)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin ole-package OLE Ole10Native stream: ObjectPool/_1696329538/Ole10Native 178609 bytes
SHA-256: 93415ec500dc7c6f9dd33214f978b22e3d14b61c1bd76068fad5e1fef9f95181
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.
ole10native_00_WLBRdJI4nJkzGtFy4YJGURsImto47Nnp.jar ole-package-payload OLE Ole10Native payload: ObjectPool/_1696329538/Ole10Native; display_name=WLBRdJI4nJkzGtFy4YJGURsImto47Nnp.jar; full_path=C:\Users\MICROS~1\AppData\Local\Temp\{446D2951-C0FB-4E0D-ABC1-A26BD05C11DA}\WLBRdJI4nJkzGtFy4YJGURsImto47Nnp.jar; temp_path=; def_file= 177802 bytes
SHA-256: 9e7fde5bad7135bcafa82e8323563468174c956d8557a5dc17f98fcb6f0f868f