Office (OLE) / .DOC malware analysis — malicious · 578663ca789cbb8f

MALICIOUS

Office (OLE) / .DOC

161.1 KB Created: 2020-09-17 22:23:00 Authoring application: Microsoft Office Word

MD5: 1735608f0e217d3b8bc7fefdef4a7bf9 SHA-1: 56b874587270334babf7d7532cdb093621960050 SHA-256: 578663ca789cbb8f68ad4c1a55a609f0cfe21226ef04719d8fe894db5932f181

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a malicious OLE document containing VBA macros. The critical ClamAV detection and high-severity heuristics for VBA macros, Document_Open auto-execution, and CreateObject calls indicate malicious intent. The Document_Open macro likely executes code to download and run a secondary payload, as suggested by the 'Doc.Downloader' ClamAV detection. No specific family could be identified.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763113-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763113-0
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` `98a29bdf4abf669a96318f520c9bfe3aa10e950f57f7c585bdcdcff6e6ad90b2`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	21952 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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