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

Static analysis result for SHA-256 fb3a8896b651d424…

MALICIOUS

Office (OLE) / .DOC

103.0 KB Created: 2020-05-27 10:25:00 Authoring application: Microsoft Office Word
MD5: 17e01f002636692e298cfff300f3ae18 SHA-1: 1672fc9567a0b8a3f1ad3ae3f40086ab9b31439e SHA-256: fb3a8896b651d424ca2c7e1a2626cedd161fde88a5ec0b12bbdcce2f8b30cc95
202 Risk Score

Malware Insights

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

The file is a Microsoft Office document containing VBA macros, as indicated by the OLE_VBA_MACROS heuristic. The presence of an AutoOpen macro and a GetObject call, combined with the critical ClamAV detection of 'Doc.Downloader.Generic-7906099-0', strongly suggests that the macros are intended to download and execute a secondary payload. The macros.bas file is identified as a suspicious extracted artifact.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-7906099-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-7906099-0
  • AutoOpen macro high OLE_VBA_AUTOOPEN
    AutoOpen macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
  • Suspicious extracted artifact info 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 http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
d5d3b88f75b7472be1856490d2524724737bee9a08cddc871647dcacc8759cf8
vba-macro oletools.olevba.extract_macros (decoded VBA source) 8969 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 1 long base64-like blob(s).