Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 37a2d1c69a388af4…

MALICIOUS

Office (OLE)

357.5 KB Created: 2021-07-14 08:59:00 Authoring application: Microsoft Office Word
MD5: 40ec72ee2259f55dcabe9d1fe4f54eb3 SHA-1: b6ceb1158832e4a494b3bcb1d60cfad58ee25d6a SHA-256: 37a2d1c69a388af46ea5e80ea41532b072af4eb46ec2d94a2f8111d56629ab85
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is an Office document containing an embedded OLE package, identified as 'ole10native_00.bin'. This package is flagged as risky because it can drop an auto-executable payload, likely a secondary stage malware. The embedded URL was confirmed as benign and did not contribute to the analysis.

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin
2c766303f40533ba4417fd84939bd9f160697bccfc52cbad96b2e120c394633a
ole-package OLE Ole10Native stream: ObjectPool/_1687769143/Ole10Native 331341 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 8.00, consistent with packed or encrypted content.