Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 8f030158ffdcfbee…

MALICIOUS

Office (OLE)

313.0 KB Created: 2011-03-02 20:09:00 Authoring application: Microsoft Office Word First seen: 2019-04-18
MD5: 89c808f41660380efba18a3cf49f1b14 SHA-1: e7e03e6341cbb66ff1c74b7f5d6a8023ed538426 SHA-256: 8f030158ffdcfbee43d4b306b5470b75a0a0bde1c86634e701c9b8367c71b982
322 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1140 Deobfuscate or Obfuscate Malicious Code

The sample is a malicious Office document containing an embedded executable payload. It also references ShellExecute, LoadLibrary, and GetProcAddress APIs, indicating dynamic code loading and execution. The document body suggests a password-protected archive lure, commonly used to bypass security scanners. The embedded executable is the primary indicator of malicious intent.

Heuristics 8

  • 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 ShellExecute API high SC_STR_SHELLEXEC
    Reference to ShellExecute API
  • Reference to LoadLibrary API high SC_STR_LOADLIBRARY
    Reference to LoadLibrary API
  • Reference to GetProcAddress API high SC_STR_GETPROCADDRESS
    Reference to GetProcAddress API
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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
embedded_office_00005654.exe embedded-pe Office MZ+PE at offset 0x5654 298412 bytes
SHA-256: 115e32612af3d0d70692464b8f3956a733a943e17e7c138654de6a97f4b05e48
ole10native_00.bin ole-package OLE Ole10Native stream: ObjectPool/_1385295397/Ole10Native 288201 bytes
SHA-256: 479c5c85994f6678ee8d1d39d7fe386cdb325c222d0289a9d27bd296b7508c5c

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