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

Static analysis result for SHA-256 9262b8794f8edf0a…

MALICIOUS

Office (OLE) / .DOC

850.5 KB Created: 2021-10-07 09:24:00 Authoring application: Microsoft Office Word
MD5: d2d1e003e62a09aeb1dfd04a4e012d40 SHA-1: 884fd03be850256deab3b128c626869871dfdaa8 SHA-256: 9262b8794f8edf0a347dccde6e70cacf32e2e2c65ed48483c0076222f03e81bb
104 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious OLE document containing a VBA macro that executes upon opening. The macro attempts to establish persistence by writing to the registry key HKCU\Software\Microsoft\Windows\CurrentVersion\Run\IAccessible2Proxy. It also attempts to open another document using the password 'doyouknowthatthegodsofdeathonlyeatapples?'. The presence of the Document_Open macro and the embedded OLE object strongly suggests a malicious intent to compromise the user's system.

Heuristics 5

  • Office EPRINT stream contains EMF object high CVE related OLE_EPRINT_EMF_OBJECT
    OLE ObjectPool contains an EPRINT stream with EMF data. This is rare in normal documents and is CVE-2007-3893/MS07-046-family evidence when paired with Office exploit payload anomalies, but the malformed EMF record is not proven by this rule alone.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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/office/2006/encryption
    • http://schemas.microsoft.com/office/2006/keyEncryptor/password
    • http://schemas.microsoft.com/office/2006/keyEncryptor/certificate
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
e36f32bea62b6f4a176499b61986825adee6aa3817d4759753bc3639958ddc72		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3579 bytes
ole10native_00.bin
6aebc83c9076d5b03332190cbbdb7943aa0fc7b3c640d07cbc4fe0507ac36d3b		 ole-package OLE Ole10Native stream: ObjectPool/_1695078749/Ole10Native 248611 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact entropy is 7.98, consistent with packed or encrypted content.

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