Office (OLE) malware analysis — malicious · 1060fcad15468bf5

MALICIOUS

Office (OLE)

167.5 KB Created: 2018-07-03 06:55:00 Authoring application: Microsoft Office Word First seen: 2019-02-10

MD5: 396c38322388d1294d07f7502e4f387b SHA-1: 58de4e7ea0041fec5b8addbda60722193ddc8c81 SHA-256: 1060fcad15468bf513f97f70fd99c957ddeda8acb9eae58b55d1e9f1cb5b2dd5

282 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.001 PowerShell

The file is an OLE document containing an embedded package (ole10native_00.bin) flagged as an auto-executable payload. Heuristics indicate references to PowerShell and Windows Script Host, suggesting script execution capabilities. The presence of Ole10Native is also associated with potential exploitation of CVE-2026-21514. The overall behavior points to a dropper mechanism designed to execute a secondary payload.

Heuristics 7

OLE with Ole10Native — possible CVE-2026-21514 exploitation high CVE likely CVE_2026_21514

Document contains a Word OLE object with Ole10Native plus executable, PE, or risky remote-link indicators. CVE-2026-21514 exploits OLE metadata validation; this stronger structure is treated as likely exploitation.
ClamAV: Doc.Dropper.Agent-7551660-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Agent-7551660-0
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.
Reference to PowerShell high SC_STR_POWERSHELL

Reference to PowerShell
Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
Suspicious extracted artifact high 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 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ole10native_00.bin`	ole-package	OLE Ole10Native stream: ObjectPool/_1592091759/Ole10Native	127897 bytes
SHA-256: `a1da11ff604a9f0ad2064b74c74c7a1fcc5ff23aed26df617c60ffb178257bea`
Detection ClamAV: No threats found Obfuscation or payload: likely Static shellcode analysis recovered command string(s): WScript.Echo("psmfoDFthSZSduOGPBbS"), WScript.Echo("542"), WScript.Echo("cZkDlfWPzaOEtHWHGnfvEvSI") Carved artifact contains 4 shell/COM execution token(s).

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