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

Static analysis result for SHA-256 a44245966da504dd…

MALICIOUS

Office (OLE) / .DOC

137.0 KB Created: 2020-06-12 17:18:00 Authoring application: Microsoft Office Word
MD5: 9306455c9225f7f8037e414334862873 SHA-1: 147d7247127e3fc85b3a5e4ebb00ceb88204b594 SHA-256: a44245966da504ddb5ad24c33f3a35fdb7f60853845eb3dc6c8f1a2c25daf576
202 Risk Score

Malware Insights

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

The file contains VBA macros, specifically an AutoOpen macro that utilizes GetObject, indicating a downloader or dropper functionality. The ClamAV heuristic also flags it as a generic downloader. While no specific URLs were extracted, the presence of the 'macros.bas' file and the macro execution techniques strongly suggest the intent to download and execute a second-stage payload.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-8023922-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-8023922-0
  • 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
16d4b675310a0216d7e30ee4c52534b34a089d8c8bfd56796cbd82ee7b8c77ff
vba-macro oletools.olevba.extract_macros (decoded VBA source) 20639 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 long base64-like blob(s).