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

Static analysis result for SHA-256 8d89cb9044f55366…

MALICIOUS

Office (OLE) / .DOC

550.0 KB Created: 2023-07-12 13:29:00 Authoring application: Microsoft Office Word First seen: 2023-09-12
MD5: 8b47cfbd65f93270b4bf0a78d26e4c6c SHA-1: 3c2e062c40e70caa63375ef84bb35beb08343cf6 SHA-256: 8d89cb9044f553665efa6b753b66f3231867b91e8d8c1cc519770e7bee0af1c4
262 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1204.002 Malicious File T1059.003 Windows Command Shell

The sample is a malicious Office document containing VBA macros, specifically an AutoOpen macro. This macro executes a command to download a file named 'jahy.exe' from a constructed URL (http://ps://cdn.discord.com/attachments/1077543461617676409/1150743707176402974/jahy.exe) to the user's AppData directory and then executes it. The use of cmd.exe and Shell() calls indicates a clear intent to download and run a secondary payload.

Heuristics 7

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Malware.Sagent-10028040-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Sagent-10028040-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • cmd.exe reference in VBA high OLE_VBA_CMD
    cmd.exe reference in VBA
  • 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
86d54b97533e00498803bcda70fc386e8da90226b9b11b828a7710c9062f12d7
vba-macro oletools.olevba.extract_macros (decoded VBA source) 830 bytes