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

Static analysis result for SHA-256 84262cac91a2f985…

MALICIOUS

Office (OLE) / .DOC

162.5 KB First seen: 2022-08-22
MD5: 9a5c82e5990e488af61199318b033aa9 SHA-1: 59888b212544fb803d3ef24c01d74611cbba79b8 SHA-256: 84262cac91a2f98584a15c71b4147abcf837581dd6833831e125c06e93e9f56d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1559.001 Component Object Model Hijacking

The critical heuristic indicates that the OLE package within the document is designed to drop an auto-executable payload, specifically a JAR file. The extracted artifact 'ole10native_00.bin' and the embedded JAR filename 'WBVLIJIKDGKSGFNIKGSHVUMGQLHOTKKEERVCQAPCKQLJGPOARWAYE.JAR' are key indicators of this malicious behavior. This suggests the document is a dropper for further malicious execution.

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
8a74b082d5685e42af4b6e93d0d735aeed535b8a5e8bb5e3aa98a3360931d579
ole-package OLE Ole10Native stream: Ole10Native 162223 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.