Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 4267e68d771c3b3c…

MALICIOUS

Office (OLE)

21.0 KB Created: 2018-05-15 19:39:00 Authoring application: Microsoft Office Word First seen: 2020-05-25
MD5: 09df79aabf90f83a8752ff6fe54516aa SHA-1: 7f7e7678d43074a42a913d9a93fb14585069dc3f SHA-256: 4267e68d771c3b3c99fe0db60cc174c6ca235d393ff98b1da4da88ea2cddff55
162 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 with a .lnk file, which is a strong indicator of malicious intent. Heuristics suggest potential exploitation of CVE-2026-21514 and the presence of PowerShell commands, indicating the file likely attempts to download and execute a second-stage payload. The embedded .lnk file is the primary IOC.

Heuristics 5

  • 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.
  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • Ole10Native package carries executable/script file type high OFFICE_PACKAGE_RISKY_FILE
    OLE Package displayName or fullPath ends in an executable or script-capable extension. Even without UI extension spoofing, embedding a runnable payload inside an Office document is a high-risk delivery pattern.
  • 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.

FilenameKindSourceSize
ole10native_00.bin ole-package OLE Ole10Native stream: ObjectPool/_1587897468/Ole10Native 1856 bytes
SHA-256: 3620b621f4c441e305336e265225c683523b7257f470abd2a1c96ffe24ddeee3
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Static shellcode analysis recovered command string(s): PowerShell, powershell.exe

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