Office (OLE) / .DOCX malware analysis — malicious · 74bf5ffc4f0fbbcf

MALICIOUS

Office (OLE) / .DOCX

155.5 KB Created: 2020-12-30 13:16:00 Authoring application: Microsoft Office Word

MD5: 71564253b1ae394c7e31a25e907411a8 SHA-1: de6fdcbe18bb6f290f283db69fd28f902f1d5d9c SHA-256: 74bf5ffc4f0fbbcfa4decbf40f781dcd4dbe1a409c1fdb581d1f92e368f251fb

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro with auto-execution capabilities suggests the file is designed to download and execute a second-stage payload. The embedded URL, though benign in reputation, is noted as part of the document's structure.

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` `56a4885fb35696e61eb89c4193c6dbd09786b2db28cac633c3290a9c612d3393`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6670 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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