Office (OLE) / .DOCX malware analysis — malicious · c624b676e101d4cd

MALICIOUS

Office (OLE) / .DOCX

159.1 KB Created: 2020-09-17 16:56:00 Authoring application: Microsoft Office Word

MD5: b857588eb7b9ddaea699754c089a84c8 SHA-1: 1649571f8447652bc80945e75c8745b98eb8f3d4 SHA-256: c624b676e101d4cd1b16d080f4956782e75f55bb7ebbceb37cde73904ab336e6

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a common technique for initial execution. Critical heuristics indicate a downloader, and the presence of VBA p-code auto-execution with CreateObject calls further supports this. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests the file's purpose is to download and execute additional malicious content. No specific family could be identified, but the behavior is consistent with a macro-based downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763026-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763026-0
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` `d72f45ff27ad6de46c4e2f18d1cb6c13c4a0c6682629fccb5d0be1c4ab69db7a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19870 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 20 long base64-like blob(s). Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.