Office (OLE) / .DOC malware analysis — suspicious · 7ae53691022112cf

SUSPICIOUS

Office (OLE) / .DOC

90.0 KB Created: 2020-12-29 06:48:00 Authoring application: Microsoft Office Word

MD5: ba880edfea541e888c50f88018132d1e SHA-1: 0759a96a9aa150771cdad0fe082b5d7802f1e4be SHA-256: 7ae53691022112cf61a80115ea00166204f89de2dd7ec3c982e879be9a6fdc7e

40 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains a VBA macro that is automatically executed via the Document_Open subroutine. This macro utilizes CreateObject to likely download and execute a secondary payload from one of the hardcoded file paths. The obfuscated nature of the VBA code and the presence of multiple file paths suggest a downloader or droppper functionality.

Heuristics 6

Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject 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
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
Macro capabilities present but unconfirmed info MACRO_CAPABILITY_UNCORROBORATED

The document's VBA exposes execution capabilities (Shell/WScript/CreateObject/auto-exec) but nothing corroborates malicious intent — no obfuscation, memory-exec primitive, download+exec chain, encoded payload, LOLBin, DDE, AV hit, or suspicious URL. The verdict was capped at 'suspicious' so legitimate macro-heavy business documents are not flagged malicious on capability presence alone.

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `ee8ec4fa15ad6eb2ac2bf070761ccf080e3c94ec90e0c1c54b34fa827ebaa511`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8326 bytes

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