Office (OLE) / .DOCX malware analysis — malicious · e4375d0a2ba93271

MALICIOUS

Office (OLE) / .DOCX

194.0 KB Created: 2020-10-22 20:29:00 Authoring application: Microsoft Office Word

MD5: 199750f5f767e5f19e3601a56c9e3730 SHA-1: 02ed1639326e2b238d33c6954bdd2e5c361a53ed SHA-256: e4375d0a2ba932718dec66682d272815c527e91c52f8fd834f2b13a199c60e95

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that executes upon opening. The critical ClamAV detection and high-severity heuristics indicate this is a downloader. The Document_Open macro uses CreateObject, a common technique for executing code, and the presence of macros suggests it's designed to download and run a second-stage payload. The embedded URL, though benign according to the reputation, is listed as an IOC due to its presence in the document.

Heuristics 7

ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
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` `9ca879422c3203043eb02bf7332bfccca42d062c85606acaa47b14db718d1f57`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	22796 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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