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

Static analysis result for SHA-256 be03005a47b6229c…

MALICIOUS

Office (OLE) / .DOC

173.0 KB Created: 2021-11-04 10:43:00 Authoring application: Microsoft Office Word First seen: 2021-11-07
MD5: 0667f42194d54806a90e8b70f19da05b SHA-1: 1e0500ea9175f79bbf72c7fe07ce4122963d327f SHA-256: be03005a47b6229c2a4fd08922107ae8a369493c8571f6254bf4372257624b8a
64 Risk Score

Malware Insights

MITRE ATT&CK
T1137 Software Deployment Tools

The file is a Microsoft Word document containing an embedded OLE package (ole10native_00.bin) which is identified as a risky file type, specifically a JAR archive. This suggests the document is a lure to deliver a malicious executable. The presence of the packed executable within the OLE object is the primary indicator of malicious intent.

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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin ole-package OLE Ole10Native stream: ObjectPool/_1697538597/Ole10Native 140084 bytes
SHA-256: 59779e279e1b37761e272adbc738b76dd4514bb6750a9ee75f850e69c88d4398
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.
ole10native_00_i8vk2DssdNtKZqToYd9tqj63SsMSOcgyNPbmgFYuIfYLy98D.JAR ole-package-payload OLE Ole10Native payload: ObjectPool/_1697538597/Ole10Native; display_name=i8vk2DssdNtKZqToYd9tqj63SsMSOcgyNPbmgFYuIfYLy98D.JAR; full_path=C:\Users\MICROS~1\AppData\Local\Temp\{D4E3F2BD-3472-4BAF-9087-1306C247B68B}\i8vk2DssdNtKZqToYd9tqj63SsMSOcgyNPbmgFYuIfYLy98D.JAR; temp_path=; def_file= 139133 bytes
SHA-256: 90d4ec5fd5189dd3590df063b19a8a6aecd42c60490c5ab667b8caa52ebfedfe