Office (OLE) / .DOC malware analysis — malicious · 893f899cc18e3a2f

MALICIOUS

Office (OLE) / .DOC

505.5 KB Created: 2010-06-02 13:35:00 Authoring application: Microsoft Office Word

MD5: 3d3e4aa49b59ee74e743ecc196989cc6 SHA-1: a97682eab9ca3aa7b426a46562282194317f897a SHA-256: 893f899cc18e3a2fe3ece52dcfc3760c36ce0de668406cf88249ee2a12478804

382 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File

The sample is a malicious OLE document containing an embedded PE executable. The document body presents a lure for a deposit receipt, instructing the user to click to open an 'EMBED Package', which is likely the embedded executable. Heuristics indicate the presence of ShellExecute, LoadLibrary, and GetProcAddress APIs, common in malware execution. ClamAV detected the file as Win.Trojan.Ag-9, and also flagged the extracted artifact.

Heuristics 10

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
ClamAV: Win.Trojan.Ag-9 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Win.Trojan.Ag-9
ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV

ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
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
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.microsoft.com/SMI/2005/WindowsSettings
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`embedded_office_0000fb74.exe` `38954d3058ad57984101d5166b5862895a633e687dcc54ed5462ec25415615cd`	embedded-pe	Office MZ+PE at offset 0xFB74	453260 bytes
Detection ClamAV: Win.Trojan.Ag-9 Obfuscation or payload: unlikely
`ole10native_00.bin` `485eaa4b8316bb2323b113a5433b5dacfa24870c4f3dd871bff7cec7189ffb65`	ole-package	OLE Ole10Native stream: ObjectPool/_1335191732/Ole10Native	287578 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.49, consistent with packed or encrypted content.
`ole10native_01.bin` `9d6209d9160ec16b67ef2851fb9f72f4c686b3c5d5cd5e7cea25f65d0a97b316`	ole-package	OLE Ole10Native stream: ObjectPool/_1336965927/Ole10Native	183016 bytes

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