Office (OLE) / .DOC malware analysis — malicious · 67d05dd367015c89

MALICIOUS

Office (OLE) / .DOC

182.4 KB Created: 2019-04-25 13:36:00 Authoring application: Microsoft Office Word

MD5: 4c9577c9b451bdf089a29f08dad3f0e3 SHA-1: b35b70d557ad8efa514365382c21560eed42c747 SHA-256: 67d05dd367015c892e3f0f50e5737a5138f00f626a134a85f1c2a6496132e691

262 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1203 Exploitation for Client Execution

The sample contains VBA macros, including an AutoOpen macro, which is a common technique for executing malicious code upon opening a document. The critical heuristic 'VBA WMI Win32_Process launcher' indicates the script attempts to launch processes using WMI, a strong indicator of a downloader or dropper. ClamAV detection further confirms its malicious nature, identifying it as 'Doc.Downloader.Powload-6956244-0'. The script's intent is to download and execute a second-stage payload.

Heuristics 7

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.Downloader.Powload-6956244-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Powload-6956244-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
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
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` `2b48032229c59be11aa8e92325edede8902185d9bbe38067f12a1dd9fd28b214`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	29266 bytes

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