Office (OLE) / .DOC malware analysis — malicious · 3d0c3f3d464a8229

MALICIOUS

Office (OLE) / .DOC

670.0 KB Created: 2020-02-26 14:28:00 Authoring application: Microsoft Office Word

MD5: dfcdb189eafa87b66861d3d110e17f7a SHA-1: c05d97f19fe2defb98bad06fcfbc2af447f7e921 SHA-256: 3d0c3f3d464a8229480b6d4a024d2982c72d67942d8ee245dd91da1a26ddd22a

108 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1027 Obfuscated Files or Information

The sample is a Microsoft Office document containing VBA macros. Heuristics indicate the presence of CreateObject calls and VBA string obfuscation, suggesting the macros are designed to execute arbitrary code. The embedded 'macros.bas' file is the source of these malicious macros. The script's obfuscation makes it difficult to determine the exact payload, but the overall pattern is consistent with a macro-based downloader.

Heuristics 5

CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
Suspicious extracted artifact high 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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Environ() call (env variable access) low OLE_VBA_ENVIRON

Environ() call (env variable access)
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.

Filename	Kind	Source	Size
`macros.bas` `058604f3f24a9e42cf3a8375152c80f0c13d03a88cd16ece639d69f114bb97f3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	5484 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 8 Chr/ChrW string-construction calls.

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