Office (OLE) / .DOC malware analysis — malicious · 757ee37eac294a59

MALICIOUS

Office (OLE) / .DOC

103.5 KB Created: 2020-03-03 17:12:00 Authoring application: Microsoft Office Word

MD5: 345986fda4445e2ef32a7c6e7b6a18e1 SHA-1: 926c13bb1f93aef0bda2e61f77ad3cf3e2f8572b SHA-256: 757ee37eac294a595190202867e1f311a5abd00807e15d5f729703aeb6cf346a

304 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The sample is a malicious Office document containing VBA macros. The 'Document_Open' macro is configured to auto-execute and uses 'GetObject' and 'CreateObject' calls to interact with WMI's 'Win32_Process' to launch new processes. This is a common technique for downloading and executing additional malicious payloads. No specific family could be identified, but the behavior suggests a downloader or initial-stage dropper.

Heuristics 9

VBA WMI Win32_Process launcher critical OLE_VBA_WMI_PROCESS_CREATE

VBA macro builds or references a WMI moniker for Win32_Process and invokes .Create to start a command. This is a high-confidence macro execution chain that often hides the WMI class name through string concatenation or helper functions.
ClamAV: Doc.Malware.Generickdz-7608151-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Generickdz-7608151-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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
Suspicious extracted artifact info 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.
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` `66348b37c8556106acc04f1516dabecfbca0fc0dbd9cd6247f0d5f10b8babf3f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6338 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 long base64-like blob(s).

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