Office (OLE) / .DOCX malware analysis — malicious · d3cbce7f756b07e4

MALICIOUS

Office (OLE) / .DOCX

150.4 KB Created: 2020-09-24 10:05:00 Authoring application: Microsoft Office Word

MD5: 8dca806aa825b4a4c41f5e2e5c01835b SHA-1: 9c2cb3d769b0e1ce7d0cbee837eef90429d9bc80 SHA-256: d3cbce7f756b07e47bb8f703bbe75f923ff2dd3134bf5ac11be8ec46e6a80500

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.005 Visual Basic

The file is a malicious DOCX document containing VBA macros. The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC indicate that the Document_Open macro is designed to execute code. The presence of the macros.bas artifact further supports this. The document body appears to be obfuscated or corrupted, but the heuristics strongly suggest the macro attempts to execute a PowerShell command, likely for downloading and executing a second-stage payload.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
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` `b39e572cf96864edb4f5c39daa3a8388f74111156690860ca53002be67bbf3ff`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20583 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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