Emotet Office (OLE) / .DOC malware analysis — malicious · d0bac8c6b91b4fce

MALICIOUS

Office (OLE) / .DOC

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

MD5: eb50e4bbd05ff80456329a6aa42c0086 SHA-1: 09045d42e7c44cd2fbe4960eee27dba280c552f2 SHA-256: d0bac8c6b91b4fce972b7812732038060c5aa998e25f767bec7329a1224573c0

202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1105 Ingress Tool Transfer

The sample is a malicious OLE document containing VBA macros. The ClamAV detection and heuristic firings indicate it's a downloader. The VBA script reconstructs a list of URLs and appears to download and execute a second-stage payload. Specifically, the script reconstructs the following URLs: 'http://cuihoibugia.com/aecidostage/2gxyA4uNl6VPDUQA/', 'http://ckfoodz.net/ALFA_DATA/fdems/', 'http://promamun.com/wp-admin/hLQNkXW2AqRJ8g9CrSR/', 'http://anvokelimited.co.uk/wp-content/gcTfqrfseEI3leLT/', 'http://www.crownpacific.com/guglio/AJ9tcRrank/', 'https://www.powertechqipement.com/nxepztl/PRRAUZT/', 'https://bike.ideaite.it/vendor/aKwajHxcGCAgAQ35-'. It also constructs a path 'C:\ProgramData\.dll' which is likely where the downloaded payload will be saved.

Heuristics 6

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

ClamAV detected this file as malware: Doc.Downloader.EmotetRedDawn11210-9912807-0
Reference to WinExec API high SC_STR_WINEXEC

Reference to WinExec API
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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` `3d8e72d52b5d32200311f6c91c1043b980c8bcbcb72a5cc3cecd6e3758f21ece`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20963 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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