Emotet Office (OLE) / .DOC malware analysis — malicious · 574c0911fc47988f

MALICIOUS

Office (OLE) / .DOC

185.5 KB Created: 2021-11-24 10:11:00 Authoring application: Microsoft Office Word

MD5: 42fda062a8a839f5712ebf38651c088d SHA-1: d23d4bc466b35b8939b8841f751ddd223758a79b SHA-256: 574c0911fc47988f8a97ab504adada3fa3b0c0b0da9e317e7f0dcaf310c13890

162 Risk Score

Malware Insights

Emotet · confidence 90%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File T1059.003 Windows Command Shell

The file is detected as malicious by ClamAV with the signature 'Doc.Downloader.EmotetRedDawn11210-9912807-0', indicating it is likely an Emotet downloader. The VBA macro attempts to hide a user form and then likely downloads and executes a second-stage payload. The script also reconstructs a complex string of URLs, which are likely used for payload delivery. The presence of WinExec API calls and heap spray patterns further support the malicious nature of the file.

Heuristics 5

ClamAV: Doc.Downloader.EmotetRedDawn11210-9912807-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRedDawn11210-9912807-0
Heap-spray pattern detected high SC_HEAP_SPRAY

Repeated 0x07 bytes found
Reference to WinExec API high SC_STR_WINEXEC

Reference to WinExec API
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` `e7b0f071ebb284c65a5c9630cb3ed746fc1c63014d254fb88606b3704aa4cf48`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21048 bytes

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