Office (OLE) malware analysis — malicious · a03fbed8295005a3

MALICIOUS

Office (OLE)

113.0 KB Created: 2007-09-25 12:45:00 Authoring application: Microsoft Office Word First seen: 2020-02-04

MD5: b077572a28b8d68dc13644dca917079c SHA-1: 3423c4508fbc719d8db6c99dfc1e3c44fa0247f9 SHA-256: a03fbed8295005a38ba13c9764ab30a7a3909ac0d93bd1535ceaea7489434adc

222 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is an OLE document that contains an embedded PE executable and an Ole10Native package, indicating it is designed to drop and potentially execute a payload. Heuristics for WinExec and VirtualAlloc APIs suggest the execution of malicious code. The embedded executable and package are the primary indicators of malicious intent, likely delivered via spearphishing.

Heuristics 6

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.
Embedded PE executable critical OLE_EMBEDDED_EXE

MZ/PE header found inside document — possible embedded executable
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 WinExec API high SC_STR_WINEXEC

Reference to WinExec API
Reference to VirtualAlloc API medium SC_STR_VIRTUALALLOC

Reference to VirtualAlloc API
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://www.fao.org/docrep/003/V1490P/V1490P00.htm In document text (OLE body)

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_office_0000e82e.exe`	embedded-pe	Office MZ+PE at offset 0xE82E	56274 bytes
SHA-256: `239ccae5a50a7c43ca18d58a2f8369044833262492292d2ca77cd2cf8df8f857`
`ole10native_00.bin`	ole-package	OLE Ole10Native stream: ObjectPool/_979485558/Ole10Native	41580 bytes
SHA-256: `ce7d305f6faad5a19b03654aa6f1792e995da2eae7bfe2bdf54b19a1c573be2e`

Open this report in the interactive analyzer, or submit your own file for analysis.