Office (OLE) / .DOC malware analysis — malicious · 3dcc140dcf07ccb0

MALICIOUS

Office (OLE) / .DOC

171.9 KB Created: 2020-07-27 09:07:00 Authoring application: Microsoft Office Word

MD5: 70f872f7a5a1159e4733c0243c3e4975 SHA-1: 8d47a8263490ba6f2e250d7311b713fcd658d630 SHA-256: 3dcc140dcf07ccb0f311503c7d3f89af34931ab29bb20200d39351749e8fcfd0

300 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains VBA macros, specifically a Document_Open macro that utilizes CreateObject and a hidden UserForm to execute commands. This pattern is indicative of a downloader or stager designed to fetch and execute additional malicious content. The ClamAV detection 'Doc.Malware.Logan-9219452-0' further supports the malicious nature of the file. No specific family could be identified, but the technique suggests a multi-stage attack.

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.Malware.Logan-9219452-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Logan-9219452-0
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` `c4a1b60f587f0cd10b55e32d571180aaadcb18ee2beb5cafcbdaa37ff5b93bd8`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	4056 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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