Office (OLE) / .DOC malware analysis — malicious · ace4a5bc0575d917

MALICIOUS

Office (OLE) / .DOC

103.5 KB Created: 2021-01-12 16:18:00 Authoring application: Microsoft Office Word

MD5: 8980f024234f9bd081c66e48cfe3ce7f SHA-1: 987d37b8e6e8b473ac184d41fd9353045f91b2cd SHA-256: ace4a5bc0575d917c7d59092089a82be55031d8a4c4e7a82d2cbf094406dc02d

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics for OLE VBA macros, Document_Open execution, and CreateObject calls strongly indicate a malicious dropper. The presence of a Document_Open macro that uses CreateObject suggests the script is designed to download and execute a second-stage payload. The ClamAV signature 'Doc.Dropper.Emotet3steps0121-9819166-0' further supports this, though a specific family cannot be definitively identified from the provided evidence.

Heuristics 7

ClamAV: Doc.Dropper.Emotet3steps0121-9819166-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Emotet3steps0121-9819166-0
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` `846d9dba1e5a091eca7b1ba49fabd03e4d7d73bacae0080c73c6238caa5fb989`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	7375 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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