Office (OLE) / .DOCX malware analysis — malicious · 7c2e5a786cd93193

MALICIOUS

Office (OLE) / .DOCX

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

MD5: f4a1ceea580fa7f0f130177b824e89c7 SHA-1: fd589449588da89d9564dbd2159c85ce71f5fe89 SHA-256: 7c2e5a786cd93193cbf4304bf8e31d4a43d82372020df0af6cccf42807c7271e

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The critical ClamAV detection and high-severity heuristics for CreateObject and p-code auto-execution further support this. The Document_Open macro likely executes code to download and run a secondary payload, as suggested by the 'Doc.Downloader' ClamAV signature.

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.

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