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

Static analysis result for SHA-256 1e7ef51ebf377662…

MALICIOUS

Office (OLE) / .DOC

335.5 KB Created: 2021-05-25 21:29:00 Authoring application: Microsoft Office Word First seen: 2021-06-13
MD5: 637d674d5f029c40c6f48b523ef8a36c SHA-1: e958be6202d5db38032085b32d7a2da809745a84 SHA-256: 1e7ef51ebf377662ac146590ecff7b38708d733d25d2074016c55cd60ad3f9f2
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. This package, identified as 'ole10native_00.bin', has been flagged as potentially risky because it carries an executable or script file type, specifically a JAR file. The embedded URL is likely related to the document's structure rather than a malicious payload delivery mechanism.

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/_1683494116/Ole10Native 319612 bytes
SHA-256: 0003128ab5bf82e507245d99ca0bbd5e61a867b2184ce028e5b91f9f9550dc90
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.
ole10native_00_yKEn7SqD8uVghflTL.jar ole-package-payload OLE Ole10Native payload: ObjectPool/_1683494116/Ole10Native; display_name=yKEn7SqD8uVghflTL.jar; full_path=C:\Users\TESTER\AppData\Local\Temp\yKEn7SqD8uVghflTL.jar; temp_path=; def_file= 319213 bytes
SHA-256: c34a118272b72f1cb21cf5518029cd738e8365a509774818ba6dcacfff1ea709