Office (OLE) / .DOC malware analysis — malicious · b966dd660d1ccd9e

MALICIOUS

Office (OLE) / .DOC

359.5 KB Created: 2021-06-14 21:29:00 Authoring application: Microsoft Office Word

MD5: 2d4f29803efa9c5ded4b030fa60700d7 SHA-1: 20bd68cc3ae5ba929ab857a165c5d41eb52bf7c5 SHA-256: b966dd660d1ccd9e444efaf911368a8da44058869bdf60bbb96ae758b9867030

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample is a malicious OLE document containing VBA macros. The presence of a Document_Open macro, CreateObject calls, and references to WScript indicate that the macro is designed to execute automatically upon opening the document. This macro likely attempts to download and execute a second-stage payload, a common technique for initial access.

Heuristics 7

Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
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 — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.

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` `5c53f4b4c293ae37219cce8ba783c7611e9c2ee7071634b77aa3e13fd07cf9d6`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	874 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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