Office (OLE) / .DOC malware analysis — malicious · 401702fc18b1f370

MALICIOUS

Office (OLE) / .DOC

155.5 KB Created: 2020-09-22 12:54:00 Authoring application: Microsoft Office Word

MD5: 285eac39c908024412dde76a78f5b0cd SHA-1: 132e9fb98c5715b587b3990eb1957de82994c15f SHA-256: 401702fc18b1f37064b82150b77b006c4d1c9f230019e86d321bcecc5d72135e

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a malicious Microsoft Office document containing VBA macros. The 'Document_Open' macro is present and configured to execute automatically upon opening the document. This macro utilizes 'CreateObject' and 'GetObject' calls, indicating an attempt to run external code or manipulate system objects. The presence of VBA macros and an auto-executing macro strongly suggests a malicious intent, likely to download and execute a secondary payload or perform other harmful actions.

Heuristics 8

ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `63bc7201a259a9f3eac24fc4f9990c61de6bed3eb66abffd8ef4af2ac67d9b62`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15901 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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