Office (OLE) / .DOCX malware analysis — malicious · 3ccc7924b26f56e9

MALICIOUS

Office (OLE) / .DOCX

164.3 KB Created: 2020-12-29 08:56:00 Authoring application: Microsoft Office Word

MD5: f63db1c7530ccea98f2ebcddddddd0cd SHA-1: 36368fe3df17e51946b22685800d0daf3b5bd1b3 SHA-256: 3ccc7924b26f56e9c8c1b2cef447578f07d12c395ed8920f534697456a4f0a13

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The critical ClamAV detection and high heuristic scores for VBA execution and CreateObject calls further support this. The obfuscated document body suggests an attempt to conceal the malicious nature of the document. The primary function appears to be downloading and executing a second-stage payload, as indicated by the VBA auto-execution and CreateObject heuristics.

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` `3e142f8f1ec045a49f005a6e1f22483ffd9a4a3fba2276e438481e79de80b3fc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8366 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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