Office (OLE) / .DOC malware analysis — malicious · 92d834cc4eeb0c98

MALICIOUS

Office (OLE) / .DOC

258.7 KB Created: 2020-10-29 06:37:00 Authoring application: Microsoft Office Word

MD5: dc0d229a2879175cd7bd69b705fc5b03 SHA-1: fad785d742451b0c1fe3393fc5082fb4f5407f2e SHA-256: 92d834cc4eeb0c988360abd919fed33b6ff21d18e7fc4fbf17a443d56374ac19

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a Microsoft Office document containing VBA macros, specifically triggering on the Document_Open event. Heuristics indicate the use of CreateObject and p-code execution, suggesting the macros are designed to download and execute a second-stage payload. The ClamAV detection as 'Doc.Downloader.Generic' further supports this. No specific family could be identified, but the behavior is consistent with a macro-based downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
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` `12b7996d43f09fffd0e41873c4fd3eb12cef1de614d36e85e4ac67c8f36943df`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18851 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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