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

Static analysis result for SHA-256 2311c7cc164dd839…

MALICIOUS

Office (OLE) / .DOC

143.0 KB Created: 2021-10-28 10:29:00 Authoring application: Microsoft Office Word First seen: 2021-10-31
MD5: 075ab8f10a6003d1b0277656dbe30c67 SHA-1: d6a8446f141920f8647baa8d0cb3dc37aad00f3b SHA-256: 2311c7cc164dd8395ecc706d5a8d42132bb9c9a6d889cb8d680e4260089c84ff
64 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The sample is a Microsoft Word 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, specifically 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 script 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/_1696932986/Ole10Native 109325 bytes
SHA-256: 2db024093b6cde80552b3629075269399f929c6838db68e12089e186ba1c8f62
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.
ole10native_00_UnAYunbDNOMSA3Bl21INQGk3tbFHgEJamBRCvStrP4N8ChC.JAR ole-package-payload OLE Ole10Native payload: ObjectPool/_1696932986/Ole10Native; display_name=UnAYunbDNOMSA3Bl21INQGk3tbFHgEJamBRCvStrP4N8ChC.JAR; full_path=C:\Users\MICROS~1\AppData\Local\Temp\{BCBD0476-8EDA-45CC-8CF4-4E0B977C7497}\UnAYunbDNOMSA3Bl21INQGk3tbFHgEJamBRCvStrP4N8ChC.JAR; temp_path=; def_file= 108383 bytes
SHA-256: 2a20d3c4205ece98b42041f70dacf5fe3eb8acd8aa746bade2f3a63f53e0f911