Win.Trojan.Ag-4254306-1 Office (OOXML) malware analysis — malicious · 04045c4a862e9d41

MALICIOUS

Office (OOXML)

391.4 KB Created: 2014-09-30 13:22:00 UTC Authoring application: Microsoft Office Word 12.0000 First seen: 2021-06-20

MD5: 9eb180452619de218bb704696252ef0f SHA-1: 82c421ecb29879e37dc61e4c855a36ab94b6903d SHA-256: 04045c4a862e9d4195ba01b671b7e76a37cc8807bcd01331ad4eb1aec8dc312f

204 Risk Score

Malware Insights

Win.Trojan.Ag-4254306-1 · confidence 95%

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document contains an embedded OLE object with indicators of an executable payload, specifically flagged as a likely CVE-2026-21514 exploitation attempt. ClamAV signatures confirm the presence of Win.Trojan.Ag-4254306-1, indicating the embedded object is a malicious executable. The document body's instruction to 'click twice on the image above' likely prompts the user to trigger the exploit.

Heuristics 5

ClamAV: Win.Trojan.Ag-4254306-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Ag-4254306-1
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.
Embedded OLE object medium OOXML_OLE_OBJECT

Document contains an embedded OLE object
Suspicious extracted artifact info 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/markup-compatibility/2006 In document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/officeDocument/2006/relationshipsIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/officeDocument/2006/mathIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawingIn document text (OOXML body / shared strings)
- http://schemas.openxmlformats.org/wordprocessingml/2006/mainIn document text (OOXML body / shared strings)
- http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`ooxml_oleobject_00.bin`	ooxml-ole-object	OOXML embedded OLE part: word/embeddings/oleObject1.bin	443904 bytes
SHA-256: `1eac5a2bdca7c928f44a4f16527817c40d0fed48847ae72e3a88d14af96c3037`
Detection ClamAV: Win.Trojan.Ag-4254306-1 Obfuscation or payload: likely Carved artifact entropy is 7.79, consistent with packed or encrypted content.
`ooxml_oleobject_00_ole10native_00.bin`	ole-package	OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native	437542 bytes
SHA-256: `fb15c50dff8b0ae92b586e8add5d7fa7a6e912964499d52282147585dcf196dc`
Detection ClamAV: Win.Trojan.Ag-4254306-1 Obfuscation or payload: likely Carved artifact entropy is 7.82, consistent with packed or encrypted content.

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