Office (OLE) / .DOCX malware analysis — malicious · ef9b5567f4d0522b

MALICIOUS

Office (OLE) / .DOCX

156.6 KB Created: 2020-10-19 19:04:00 Authoring application: Microsoft Office Word

MD5: 027798ca1fab4fc4c2ead6b7ae85624c SHA-1: c7869e07d455f3f1b05f15239eb1ebc55c0d32b9 SHA-256: ef9b5567f4d0522bdc9c446cfe86db8daf0e6c6a16d48cde2691b1f1a10b6d41

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a Microsoft Office document containing VBA macros, specifically triggering a Document_Open auto-execution macro. The critical ClamAV detection and high-severity heuristics indicate malicious intent. The Document_Open macro uses CreateObject, a common technique for executing arbitrary code, likely to download and run a secondary payload. The embedded URL, though benign, is noted.

Heuristics 7

ClamAV: Doc.Malware.Sagent-9780620-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Sagent-9780620-0
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` `f5b87ce45487709d15d050e57056fa93cd3421269a64b3bdcf77894d3425125c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15582 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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