Office (OLE) / .DOCX malware analysis — malicious · d9e5e99a04e37db7

MALICIOUS

Office (OLE) / .DOCX

153.3 KB Created: 2020-09-24 05:47:00 Authoring application: Microsoft Office Word

MD5: 6e79b7dd15b3438da3452d63ba011536 SHA-1: 268d21b3e1131c7aa11a09439f1cd6bf7db7a131 SHA-256: d9e5e99a04e37db7783f369c532e2e6d5171b90a286f2c397fcd6356a1abcce9

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.005 Visual Basic

The file is a malicious Office document containing a VBA macro. The macro is configured to auto-execute upon opening, as indicated by the Document_Open heuristic. It utilizes CreateObject to likely launch a PowerShell command, as suggested by the PCODE_AUTOEXEC_EXEC firing. The DOC BODY content appears to be obfuscated or corrupted, but the presence of the VBA macro and its auto-execution trigger strongly suggest it's designed to download and execute a secondary payload. The ClamAV detection further confirms its malicious nature.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
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` `b0798fb7450882311ba60b57e039433588cb794c6cc8a10f75d1de73c5c7973a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19490 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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