Lemodldr Office (OLE) / .DOCX malware analysis — malicious · 1c8026d6bd75a1ea

MALICIOUS

Office (OLE) / .DOCX

173.5 KB Created: 2020-07-30 14:44:00 Authoring application: Microsoft Office Word

MD5: 4f22560ef839a2cbdf19881d01eafda9 SHA-1: 66320a7f198cad4284e7dd72f3e4457fc60a58f1 SHA-256: 1c8026d6bd75a1ea091d6a6676d3a7e3bcba3b17717e21607488b9fdb762fba7

300 Risk Score

Malware Insights

Lemodldr · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1140 Deobfuscate/Decode Files or Information

The file contains VBA macros, specifically a Document_Open macro, which is a common technique for initial execution. Critical heuristics indicate a hidden UserForm command stager, suggesting the macro is designed to download and execute a second-stage payload. ClamAV detection confirms this, identifying it as 'Doc.Downloader.Lemodldr-9446123-0'. The presence of a hidden UserForm with command stager functionality strongly points to a downloader's behavior.

Heuristics 8

VBA UserForm hidden-property command stager critical OLE_VBA_USERFORM_HIDDEN_COMMAND_STAGER

VBA auto-exec macro creates a COM object from a decoded variable and reconstructs command text through Split/Join and hidden UserForm properties such as ControlTipText, Tag, Pages, or HelpContextId. This is a high-confidence macro downloader/loader shape seen in the reviewed OLE set, but it is not an Office CVE exploit primitive.
ClamAV: Doc.Downloader.Lemodldr-9446123-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Lemodldr-9446123-0
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` `339d253ba44adec91c57187427e62b60e64ca06aec1bdde705502a54b58175bc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	5269 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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