Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 0ca19ff51c089424…

MALICIOUS

Office (OLE) / .DOCX

179.0 KB Created: 2020-10-22 15:17:00 Authoring application: Microsoft Office Word
MD5: 7f8a2c4e3c1875b49e8e815da6c366db SHA-1: 09347684c829c41cc05541f953ec0cd711d66dd9 SHA-256: 0ca19ff51c089424eefc2fded01ee583ee3d33dcd769d675237877d74a207f67
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The sample contains VBA macros, including a Document_Open macro, which is a common technique for executing malicious code upon opening the document. The presence of CreateObject and the ClamAV detection as 'Doc.Downloader.Logan' strongly suggest that this macro is designed to download and execute a second-stage payload. The obfuscated nature of the VBA code and the truncated document body prevent a more detailed analysis of the specific payload or download URL.

Heuristics 6

  • ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
  • 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
cecccb4a1113767f9883636c8aa1a2de57ced4949da2d8bcaf50534e5e598b34
vba-macro oletools.olevba.extract_macros (decoded VBA source) 18857 bytes