Office (OLE) / .DOC malware analysis — malicious · 8f1be5660e45786b

MALICIOUS

Office (OLE) / .DOC

242.9 KB

MD5: c57b0ed4c22c033f5ed03f42f78d5103 SHA-1: 8ed3f239333da2ac540f62635569788a5d4a56a2 SHA-256: 8f1be5660e45786bb5caf0b15e6509cc86b6b5b099f40a0a4876d68816df2ec3

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a malicious DOC document containing a large VBA macro. The macro is configured to auto-execute using the Document_Open event and utilizes CreateObject, indicating it is designed to perform actions beyond simple document manipulation. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests the macro's purpose is to download and execute a secondary payload. No specific family could be identified, but the technique is common for initial access.

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` `53c940c9e61b86bba3a049505972bd865d71f0e7c155177329bd8613b2e4028a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18779 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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