Office (OLE) / .DOCX malware analysis — malicious · 268aa7df3be7ac16

MALICIOUS

Office (OLE) / .DOCX

163.4 KB Created: 2020-10-20 08:13:00 Authoring application: Microsoft Office Word

MD5: 6cf64a4b711c02de268a3340daea8514 SHA-1: 6ea36b909368ed29b84abac1f9e7dc18c92cd1e2 SHA-256: 268aa7df3be7ac167b651a571104e3bc18dbb5be66fa909b97fc9dc19792e88c

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a malicious VBA macro, specifically a Document_Open auto-exec macro, which is a common technique for initial execution. The critical ClamAV detection of 'Doc.Trojan.Agent-9781037-0' strongly indicates malicious intent. The macro likely attempts to download and execute a second-stage payload, as suggested by the 'CreateObject' call and the presence of VBA p-code auto-execution with execution tokens. No specific family could be identified, but the overall behavior points to a downloader or agent trojan.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9781037-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9781037-0
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` `8eb6ba0866f4c6c9ad4d97b0723246709e3ca63ed0491e35acc3191e90884d63`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17541 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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