Office (OLE) / .DOC malware analysis — malicious · d2c138d20e5b01e5

MALICIOUS

Office (OLE) / .DOC

159.3 KB Created: 2020-09-22 07:35:00 Authoring application: Microsoft Office Word

MD5: 119e305c9d1fa5c384a4398989ad1cf0 SHA-1: 49c82ded842951d58c00820453487254978fa2cc SHA-256: d2c138d20e5b01e5408d4026819c1369a562ca8eb3c75f0f965118e055595898

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a malicious OLE document containing VBA macros. The presence of a Document_Open macro, CreateObject, and GetObject calls, along with p-code auto-execution, strongly indicates that the macros are designed to run automatically when the document is opened. This behavior is typical of malware droppers that download and execute additional payloads. While the specific payload mechanism is not detailed, the ClamAV detection and heuristic firings confirm malicious intent.

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` `a112d95a2b3b8361e272604fc368010c1a607c2cd21f88c20a607d79b8ac6136`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16742 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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