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

Static analysis result for SHA-256 18236bab1f6789ee…

MALICIOUS

Office (OLE) / .DOC

323.5 KB Created: 2021-07-01 19:56:00 Authoring application: Microsoft Office Word
MD5: b993747b832af444808b51fb38c38c4b SHA-1: 5a1ce4e5df8d65a9c59b0cdf4b7b078a77e3f031 SHA-256: 18236bab1f6789ee8728b712647385baa79403cafa235214530acc32be3314ad
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1137.001 Software Deployment: Application Shimming

The sample is a malicious Office document containing an embedded OLE package. This package, identified as 'ole10native_00.bin', is flagged as a risky file that drops an auto-executable payload, likely a JAR file. The embedded URL was confirmed benign and is likely a false positive. The primary attack vector is likely spearphishing attachment, with the embedded artifact serving as the 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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin
2e94aecf3d5d03d9fd7d63230aac9dabf2aa361b9ae367c88d5f591b27900d8e
ole-package OLE Ole10Native stream: ObjectPool/_1686685418/Ole10Native 304693 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.