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

Static analysis result for SHA-256 33f3b3fc8b7a6a4c…

MALICIOUS

Office (OLE) / .DOC

172.5 KB First seen: 2022-07-28
MD5: 2d09debe8dff0fb8a00dc51736bc87c9 SHA-1: 7037725f336d5db732da715cdcf786d6f7f7b9f6 SHA-256: 33f3b3fc8b7a6a4c14ae37b4523eae843f10106601ad24c1581f1a3bbe91cdf8
62 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The sample is an OLE document identified as a risky file type due to its ability to drop an auto-executable payload. Static analysis revealed an embedded JAR file within an OLE package, strongly suggesting a downloader or dropper functionality. The extracted JAR filename and its path within the document body indicate it's intended to be executed.

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
284f59efaa317713a1b488d574a8aa2226dcf74c60379fcc8adf40e6e4010318
ole-package OLE Ole10Native stream: Ole10Native 172396 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.