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

Static analysis result for SHA-256 1e93da86133631f8…

MALICIOUS

Office (OLE) / .DOC

153.0 KB First seen: 2022-08-06
MD5: b2f0ddd7934b50a63ca3658828280390 SHA-1: 60272059065b74958265770c5057048305281274 SHA-256: 1e93da86133631f8ceb8381d96b6f67ad18dd38a1f5b658aa94f4dd3c1478842
62 Risk Score

Malware Insights

MITRE ATT&CK
T1559 Component Object Model Hijacking T1559.001 Component Object Model Hijacking: Ole10Native

The critical heuristic indicates that this OLE document contains a package that drops an auto-executable payload, specifically a JAR file. The extracted artifact `ole10native_00.bin` and the embedded JAR filename `NNVYUHOLDTUFTVDISSMALKPYQSGSVFDOALIGLTCMGLWTJJAKMQLBGGF.JAR` are strong indicators of this malicious behavior. The document body is heavily truncated and does not provide further context on the lure.

Heuristics 2

  • 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.

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin
7ca5937e31e0d692e26ebe1153aa4254a76b63344ace9c6d105076a140bfa349
ole-package OLE Ole10Native stream: Ole10Native 152239 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.