Lemodldr Office (OLE) / .DOCX malware analysis — malicious · 58c574f8ab938e87

MALICIOUS

Office (OLE) / .DOCX

169.4 KB Created: 2020-07-31 06:12:00 Authoring application: Microsoft Office Word

MD5: ad4dab090e9db1de2ce2972440becfa5 SHA-1: f5bce1285800898458044ff22dd93e5795a5e92e SHA-256: 58c574f8ab938e878c2d66861aa38821876dcb5a156c46ac9985a8b59f97bb8c

300 Risk Score

Malware Insights

Lemodldr · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open macro that utilizes a hidden UserForm to execute commands. This is a common technique for downloading and executing additional malware. The ClamAV detection name 'Doc.Malware.Lemodldr-9206410-0' strongly suggests the Lemodldr family. The presence of a VBA command stager indicates the primary intent is to act as a downloader for further malicious activity.

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.Malware.Lemodldr-9206410-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Lemodldr-9206410-0
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` `e26b675b19ed055840ce44ea278ca30e88d4e1c1b869ed1da651f3d27039fb5e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4965 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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