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

Static analysis result for SHA-256 62b96f7ff4146f33…

MALICIOUS

Office (OLE) / .DOC

797.0 KB Created: 2024-11-05 16:42:00 Authoring application: Microsoft Office Word
MD5: 917e800806d60717238c5b767070af1a SHA-1: 2fd273a4f5a39691e4f256eebf4c0ec705a0d298 SHA-256: 62b96f7ff4146f33146f2c134e2bfe2ad3bc2df63f1276c9eb6ad1af5952940e
302 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros with an AutoOpen subroutine that executes a Shell command. This command leverages PowerShell to download and execute a file from the URL https://alexanu.com/xwcry.exe. The presence of the Shell() call and the PowerShell execution strongly indicates a downloader or droppper functionality.

Heuristics 8

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Malware.Agent-10037028-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Agent-10037028-0
  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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 https://alexanu.com/xwcry.exe
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
d6e1ebaf857c4052150f29656419dcf0626c4b6953c497e8c8ef3a5a23e0b387		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 649 bytes

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