Win.Trojan.AgentTesla-9846789-0 — Office (OOXML) malware analysis

Static analysis result for SHA-256 e84d3186f2467eff…

MALICIOUS

Office (OOXML)

684.7 KB Created: 2020-07-30 09:04:00 UTC Authoring application: Microsoft Office Word 14.0000 First seen: 2020-08-10
MD5: bf4493d08dfb851c84055efa308bd44c SHA-1: e80feed8b5172deec70b2779adaad59e67ddb184 SHA-256: e84d3186f2467eff5ee1520509c5a7be3d96875b6af404b98a2b132663dad839
262 Risk Score

Malware Insights

Win.Trojan.AgentTesla-9846789-0 · confidence 95%

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The file is identified as malicious by ClamAV, specifically as Win.Trojan.AgentTesla-9846789-0. It contains an embedded OLE object with indicators for exploitation, likely CVE-2026-21514, and the Ole10Native package drops an executable. The document body explicitly instructs the user to 'Enable Content' and 'Double Click on adjust file icon', indicating a lure to bypass macro security and execute the embedded payload.

Heuristics 6

  • OOXML Ole10Native with payload/link indicators — possible CVE-2026-21514 high CVE likely CVE_2026_21514
    Office document contains embedded OLE (word/embeddings/oleObject1.bin) with Ole10Native plus executable, PE, or risky remote-link indicators. This is a likely CVE-2026-21514 exploitation shape.
  • ClamAV: Win.Trojan.AgentTesla-9846789-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.AgentTesla-9846789-0
  • 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
  • Macro/content-enable lure medium SE_ENABLE_LURE
    Document instructs the user to enable macros or editing — a common technique used by malware droppers to bypass Office macro security settings
  • 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.microsoft.com/office/word/2010/wordprocessingCanvas In document text (OOXML body / shared strings)
    • http://schemas.openxmlformats.org/markup-compatibility/2006In 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.microsoft.com/office/word/2010/wordprocessingDrawingIn 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/2010/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroupIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInkIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2006/wordmlIn document text (OOXML body / shared strings)
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShapeIn document text (OOXML body / shared strings)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
ooxml_oleobject_00.bin ooxml-ole-object OOXML embedded OLE part: word/embeddings/oleObject1.bin 1060864 bytes
SHA-256: 7bb422bab66342ecf1d6a7b282d269bdcd252ec932d7a0c06aea33be9b1e39a3
Detection
ClamAV: Win.Trojan.AgentTesla-9846789-0
Obfuscation or payload: unlikely
ooxml_oleobject_00_ole10native_00.bin ole-package OOXML word/embeddings/oleObject1.bin Ole10Native stream: Ole10Native 1049891 bytes
SHA-256: a196cd5463cb3c5901249c760bb52a7175afc560ddc5c3401721506d6da772c4
Detection
ClamAV: Win.Trojan.AgentTesla-9846789-0
Obfuscation or payload: unlikely
emf_00.emf ooxml-emf OOXML EMF part: word/media/image1.emf 5180 bytes
SHA-256: 1ce256074c57b22dfcfc8de2b59ca3666148e1ee3543823602e82f8189ff8cc7