Emotet Office (OLE) / .DOC malware analysis — malicious · 7da491ebf960db55

MALICIOUS

Office (OLE) / .DOC

170.3 KB Created: 2020-07-27 08:46:00 Authoring application: Microsoft Office Word

MD5: 3151073669d320278db582d5d70859e1 SHA-1: f0be4c07c4ca15dfd28c62f75f011bc4d4212be3 SHA-256: 7da491ebf960db553ac5406c952edb7e3f5edbf1c8a0cbac65e1ec1a7a0ee766

300 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject and a hidden UserForm property to execute commands. This is a known technique used by Emotet for initial payload delivery. The ClamAV detection explicitly names this file as 'Doc.Dropper.EmotetIOS-9402070-0', further strengthening the Emotet family attribution. The embedded URL, while benign, is present in the document text, indicating a potential lure or part of the delivery mechanism.

Heuristics 8

VBA UserForm hidden-property command stager critical OLE_VBA_USERFORM_HIDDEN_COMMAND_STAGER

VBA auto-exec macro creates a COM object from a decoded variable and reconstructs command text through Split/Join and hidden UserForm properties such as ControlTipText, Tag, Pages, or HelpContextId. This is a high-confidence macro downloader/loader shape seen in the reviewed OLE set, but it is not an Office CVE exploit primitive.
ClamAV: Doc.Dropper.EmotetIOS-9402070-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.EmotetIOS-9402070-0
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` `864f6cacde0a88f42b54b79ba356ff27c52858f437376448d98011ec15c1b87a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3995 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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