Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 bac89ba33e4d88e3…

MALICIOUS

Office (OLE) / .DOC

2.83 MB Created: 2010-05-20 21:54:00 Authoring application: Microsoft Office Word
MD5: a5e5075ea03fcd4e330e762596f99c9f SHA-1: 59337c79545b03619ba4165b6d384a1895ac3f68 SHA-256: bac89ba33e4d88e3a4f814a66c8c3ac9664e7f327a059e4843dc7bb513e1d4d9
200 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious File

The file is identified as malicious by ClamAV and exhibits characteristics of OLE exploitation, specifically CVE-2026-21514, indicated by the 'Ole10Native' heuristic. The presence of VirtualAlloc, LoadLibrary, and GetProcAddress API calls suggests the loading and execution of a secondary payload. The embedded OLE package is likely the mechanism for delivering this payload.

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.
  • ClamAV: Win.Trojan.Agent-584354 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Agent-584354
  • Reference to LoadLibrary API high SC_STR_LOADLIBRARY
    Reference to LoadLibrary API
  • Reference to GetProcAddress API high SC_STR_GETPROCADDRESS
    Reference to GetProcAddress 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.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/tiff/1.0/
    • http://ns.adobe.com/exif/1.0/
    • http://ns.adobe.com/photoshop/1.0/
    • http://www.iec.ch
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ole10native_00.bin
648444b4cf4c71b3c24ebf5f513bd31e479a924f5a1a6f63e9cbeed111414d3b		 ole-package OLE Ole10Native stream: ObjectPool/_1335886836/Ole10Native 1475447 bytes

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