Office (OLE) / .DOCX malware analysis — malicious · b757c7ffb783759e

MALICIOUS

Office (OLE) / .DOCX

159.6 KB Created: 2020-12-28 20:57:00 Authoring application: Microsoft Office Word

MD5: 546d74f9545746db4a7018016c5a1f12 SHA-1: 4d70b0d12c2c98284b2751400632d62585523baa SHA-256: b757c7ffb783759ec9464a1631212131a15f2aa4cdacb5f974e9f1c026dd4f59

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating it's designed to execute automatically upon opening. The ClamAV detection as 'Doc.Downloader' strongly suggests its purpose is to download and execute additional malicious content. While no specific URLs for the download were extracted, the presence of auto-executing VBA code points to a downloader attack pattern.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `fc28b021e7c13690bd05b8fda29444b887d0bad8d106819ca318299d8abb8857`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6085 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.