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

Static analysis result for SHA-256 7866aa8771bf9fe9…

MALICIOUS

Office (OLE) / .DOC

117.5 KB First seen: 2022-09-20
MD5: 9647ea877aaac9c18f6ecea3bf5258a4 SHA-1: 5cb1e214c39bebb1c22b0f9b72e8176d1f4147f7 SHA-256: 7866aa8771bf9fe93f062e05dbb2f14bfe7c01c34415ef4baa9bed5cc75aa909
62 Risk Score

Malware Insights

MITRE ATT&CK
T1559 Component Object Model Hijacking T1559.001 Component Object Model Hijacking: Auto-Run

The critical heuristic indicates that an Ole10Native package within the OLE document is configured to drop an auto-executable payload, specifically identified as a JAR file. This suggests the document is designed to deliver and execute a secondary malicious component. The embedded artifact is named 'ole10native_00.bin' and the extracted JAR is named '01.jar', both of which are high-priority indicators.

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
aa064eaa753a51eb6343be3b7925f397d94ce51490490683a9b3241b637e0a60
ole-package OLE Ole10Native stream: Ole10Native 116367 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.