Emotet Office (OLE) malware analysis — malicious · 7645774b97aa65c0

MALICIOUS

Office (OLE)

73.0 KB Created: 2018-11-08 03:58:00 Authoring application: Microsoft Office Word First seen: 2019-05-31

MD5: c41e2a8d686485ce3c579aa825a01d9f SHA-1: 9da4a0fee7def6d243a4531d5959baf5ee1b0955 SHA-256: 7645774b97aa65c0fc44f7eb677db580b1acbeb8cfeada4295ece0c81d2d2f8c

182 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1059.003 Windows Command Shell T1566.001 Spearphishing Attachment

The file contains heavily obfuscated PowerShell commands that are executed via cmd.exe. The script attempts to decompress and execute a Base64 encoded payload. This behavior is characteristic of Emotet droppers, which are known to download and run additional malware. The ClamAV detection also strongly suggests Emotet.

Heuristics 5

ClamAV: Doc.Dropper.Emotet-6769504-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Emotet-6769504-0
Suspicious cmd.exe invocation with execution flag high SC_STR_CMD

Suspicious cmd.exe invocation with execution flag
Reference to PowerShell high SC_STR_POWERSHELL

Reference to PowerShell
LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND

Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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 In document text (OLE body)

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