Office (OLE) / .DOCX malware analysis — malicious · 80d85969bb872515

MALICIOUS

Office (OLE) / .DOCX

156.7 KB Created: 2020-10-19 19:04:00 Authoring application: Microsoft Office Word

MD5: 8a96a31c2d36f47a594804ea95c8b9c6 SHA-1: 3a5b2ad53a1fb2d305857f587d604555b8d75acb SHA-256: 80d85969bb87251570c2ce8dd3b257397522c5fbdd2b80a0aad7ebe2b9327829

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample contains a VBA macro that is automatically executed upon opening the document, as indicated by the Document_Open macro heuristic. This macro uses CreateObject, a common technique for executing arbitrary code. The VBA code itself is heavily obfuscated, making it difficult to determine the exact payload, but the presence of these indicators strongly suggests it's designed to download and execute a secondary malicious file. The ClamAV detection further supports its malicious nature.

Heuristics 6

ClamAV: Doc.Malware.Sagent-9780620-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Sagent-9780620-0
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.
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` `f5b87ce45487709d15d050e57056fa93cd3421269a64b3bdcf77894d3425125c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15582 bytes

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