Office (OLE) / .DOCX malware analysis — malicious · e70e596d135c977f

MALICIOUS

Office (OLE) / .DOCX

160.2 KB Created: 2020-09-23 21:57:00 Authoring application: Microsoft Office Word

MD5: 71bc8afefaacb6ce814ccf8a39d09c47 SHA-1: 8a86ce25334b9e59ad16179c40d6679ecf19f613 SHA-256: e70e596d135c977fff3ac2431028c138f7a11cea81bfb9a9ba46ea0e0109a67e

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The sample is a malicious DOCX file containing a VBA macro that automatically executes upon opening, as indicated by the Document_Open and CreateObject heuristic firings. The ClamAV detection 'Doc.Downloader.Mryv-9765643-0' strongly suggests this macro is designed to download and execute a secondary payload. While the specific download URL is not directly extractable from the provided evidence, the presence of an embedded URL and the nature of the heuristics point to a downloader functionality.

Heuristics 7

ClamAV: Doc.Downloader.Mryv-9765643-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Mryv-9765643-0
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` `d7dd2a73d7d39dc729b85cfde71706f8b2534ea5cd633d43e9c623fb8097a814`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20294 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.