Emotet Office (OLE) malware analysis — malicious · 6b8bce7878183ef4

MALICIOUS

Office (OLE)

75.6 KB Created: 2018-11-07 10:52:00 Authoring application: Microsoft Office Word First seen: 2019-05-16

MD5: 018e130e9725c26da9f023f6d0811f5d SHA-1: e7ce6e082a12235d90649e7367f833718f996d33 SHA-256: 6b8bce7878183ef413860e57944670c0fa3d6dc9c164cdc8ae98393615675f04

182 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample contains a suspicious command that invokes cmd.exe to execute a PowerShell command. This PowerShell command decompresses and executes a Base64 encoded string, which is a common technique for downloading and running second-stage payloads. The ClamAV detection 'Doc.Dropper.Emotet-6769504-0' strongly suggests this is an Emotet variant.

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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