Lemodldr — Office (OLE) / .DOCX malware analysis

Static analysis result for SHA-256 80565d4ed000d2c5…

MALICIOUS

Office (OLE) / .DOCX

170.2 KB Created: 2020-07-30 18:38:00 Authoring application: Microsoft Office Word
MD5: e285ce98290ef514e147ab84909a9500 SHA-1: 88dc9e2c8defbafb4ef34b43c5d995b825c8b847 SHA-256: 80565d4ed000d2c561645c79096f5e2fe04ac3f5c7e9e34ac68cb4ed9306ceab
262 Risk Score

Malware Insights

Lemodldr · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open macro and a hidden UserForm command stager, which are indicative of a downloader. The ClamAV signature 'Doc.Downloader.Lemodldr-9445253-0' strongly suggests the Lemodldr family. The VBA code likely executes a command to download and run a second-stage payload.

Heuristics 7

  • 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-9445253-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Lemodldr-9445253-0
  • 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.

FilenameKindSourceSize
macros.bas
aad37b8563a763eeb53f3a9a15bc4594a9f3983e1b1a1f726fd7c0174d152cbe		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 5270 bytes

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