Office (OLE) / .DOC malware analysis — malicious · f19858a8aa21597e

MALICIOUS

Office (OLE) / .DOC

144.2 KB Created: 2021-01-05 07:06:00 Authoring application: Microsoft Office Word

MD5: 7cb3bf1401f4a5a57a5778438e4b26a7 SHA-1: ebbec19f4b7dc4ceff0505c229dee3c44bdba2ac SHA-256: f19858a8aa21597ee2021fda1a58d0c782b1a39d1152eb1e84c17df8991875be

180 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a malicious VBA macro, specifically triggered by the Document_Open auto-execution function. This macro utilizes CreateObject to execute arbitrary code, likely to download and run a second-stage payload. The obfuscated document body content does not provide further context on the lure, but the presence of VBA macros and the auto-execution technique strongly indicate a malicious intent.

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.
Suspicious extracted artifact high 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.
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

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `d3b097275af7032178b4c001ca8fbb5e7bf0f68c090585141a79334ce9cb0a60`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10798 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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