Office (OLE) / .DOCX malware analysis — malicious · d8e5bdb5b00ab131

MALICIOUS

Office (OLE) / .DOCX

189.5 KB Created: 2020-10-22 16:39:00 Authoring application: Microsoft Office Word

MD5: ac33e3e901d5baa0c1d26b075f0d04e9 SHA-1: 147438d497a605019305f7d4cc408bff4d496406 SHA-256: d8e5bdb5b00ab131084dd83a4173048d2a9956bcde30d8d4433e59d13ec9e56f

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics indicate this DOCX file contains malicious VBA macros. Specifically, the 'Document_Open' macro is configured to execute upon opening, utilizing 'CreateObject' to likely download and execute a second-stage payload. The ClamAV signature 'Doc.Downloader.Logan-9781905-0' further confirms its malicious nature as a downloader.

Heuristics 7

ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
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` `e27d29142f52c9bbf22d80d41e42b63f47a37f20e4370d5fd51155547914517e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	22921 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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