Office (OLE) / .DOCX malware analysis — malicious · d2f8727ea7e9cc98

MALICIOUS

Office (OLE) / .DOCX

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

MD5: f06e736cca92b7d8589cac294ddb2b0a SHA-1: c61e9d660da77a7117b7366a6ecf28051046bb91 SHA-256: d2f8727ea7e9cc981e1ba473128565b91230257d4e402038d2e03ef9661dee7f

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a malicious Office document containing a VBA macro. The 'Document_Open' macro is configured to execute automatically upon opening the document. This macro utilizes 'CreateObject' to initiate a PowerShell command, which is a common technique for downloading and executing further payloads. The presence of the 'macros.bas' file and the auto-execution of VBA code strongly indicate a malicious intent, likely for initial access or payload delivery.

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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