Office (OLE) / .DOCX malware analysis — malicious · 44fc387cc55c1a2b

MALICIOUS

Office (OLE) / .DOCX

193.1 KB Created: 2020-09-18 12:16:00 Authoring application: Microsoft Office Word

MD5: cfade39607672eac80920030f2f8a554 SHA-1: 10f9f4ebeaa4b4428a7c1e1a45759c018f3efd75 SHA-256: 44fc387cc55c1a2b5fc409d86cef0344a9015e93f8bf7ec6f4095485281bbf88

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file is a Microsoft Office document containing a critical OLE_VBA_MACROS heuristic firing, indicating the presence of VBA macros. The Document_Open macro and CreateObject call, along with VBA p-code auto-execution, strongly suggest that the macros are designed to run automatically when the document is opened. The ClamAV detection as 'Doc.Downloader.Generic' further supports the conclusion that this document is a downloader. The embedded URL, though benign, is noted. The primary attack pattern involves leveraging VBA macros to initiate a download of a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763532-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763532-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject 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.
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
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` `ba8241e4388725ade491e6e42da3e5f9cf169555b4f6e61ff9f624691af3445f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20213 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.