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

Static analysis result for SHA-256 74526a4d66ecfcc5…

MALICIOUS

Office (OLE) / .DOC

219.0 KB Created: 2021-10-20 11:34:00 Authoring application: Microsoft Office Word First seen: 2021-10-23
MD5: cc0f06d5983721cb84c3be5025394dd8 SHA-1: f34fa6b0fbc9757acb21f54eefdedaad6d0689c5 SHA-256: 74526a4d66ecfcc5463c486344870179112308875f76b133766e19fc546de2f0
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1137.001 Office Application Build

The sample is a malicious Office document containing an embedded OLE package. Heuristics indicate this package is designed to drop an auto-executable payload, likely a JAR file. The document body is minimal, providing no further context beyond indicating the presence of an embedded package.

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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin
081bff66c5bfe780aaca92a98d8af08a780fbce73e451ca83478ad7a1ef0c388
ole-package OLE Ole10Native stream: ObjectPool/_1696245648/Ole10Native 186535 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.