Office (OLE) / .DOCX malware analysis — malicious · ec3994399031e9c0

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 7968572787d7867ff1a6ee2dbe81fdb4 SHA-1: afc4f607f7e066fea88b58a694710d0f2095064c SHA-256: ec3994399031e9c03729b9c51069c839dcfefc07707959021f85d8250286ff43

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a Document_Open macro suggests an attempt to automatically run code upon opening the document. This code likely downloads and executes a second-stage payload, as indicated by the 'Doc.Downloader' classification.

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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