Office (OLE) / .DOCX malware analysis — malicious · f6590aae7844a0b9

MALICIOUS

Office (OLE) / .DOCX

35.5 KB Created: 2023-01-27 07:16:00 Authoring application: Microsoft Office Word

MD5: f945e368eae3d1d0d71bec2c240c13c1 SHA-1: 172b78b4fde560a29c7ca12b296c20437e9a5491 SHA-256: f6590aae7844a0b967e18079b5dab759fa48b6c79c89fb7ef5a1ff6a06c4f370

142 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file contains VBA macros, specifically an AutoOpen macro that calls GetObject, indicating malicious intent. The presence of a long encoded blob and a suspicious extracted artifact suggests the macro is designed to download and execute a second-stage payload. The document body is heavily corrupted and unreadable, providing no contextual clues.

Heuristics 6

AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
GetObject call high OLE_VBA_GETOBJ

GetObject call
VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC

Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
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.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `c0365d279fc2c5b428e55551b002b6181a1ba76a345b26104ab49ea2a2e11920`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1594 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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