Office (OLE) / .DOC malware analysis — malicious · f8a3c2acdc346b23

MALICIOUS

Office (OLE) / .DOC

152.2 KB Created: 2020-12-28 22:51:00 Authoring application: Microsoft Office Word

MD5: 6adb5bd384c79175bea48ed12ae86690 SHA-1: 3483a26f017b9728443c914b92474b8ef7feab9d SHA-256: f8a3c2acdc346b23d09f4d14e0b29c7dea15c1e76db5550a7be69b7efbe3f4a1

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a malicious DOC document containing VBA macros, specifically a Document_Open macro that uses CreateObject. This indicates an attempt to download and execute a second-stage payload. The ClamAV detection as 'Doc.Downloader.EmotetRed02224-9938637-0' further supports this. The document body is heavily obfuscated, preventing a clear understanding of its lure, but the macro execution is the primary threat.

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` `d65866a56f536df94b944d564f763521883c7d713205f64364dd856778217514`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6039 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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