Office (OLE) / .DOCX malware analysis — malicious · d5aa2a5288231447

MALICIOUS

Office (OLE) / .DOCX

154.8 KB Created: 2020-09-14 19:47:00 Authoring application: Microsoft Office Word

MD5: bbb8641b000e08aa02b70fa9911489dd SHA-1: fc1f2d7d442d22cb6aea9b1d6053016a2fcba7c2 SHA-256: d5aa2a528823144775fd403bccc5cab65060e36da8a9ce8d9ce89e114e777067

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a Word document containing a critical ClamAV detection and multiple high-severity heuristics indicating the presence of VBA macros. Specifically, the 'Document_Open' macro is configured to execute via CreateObject, a common technique for launching malicious payloads. The presence of VBA macros suggests an attempt to download and execute a second-stage payload, aligning with common phishing or malware delivery tactics. The document body is heavily obfuscated and does not provide clear textual lures.

Heuristics 7

ClamAV: Doc.Malware.Generic-9760307-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Generic-9760307-0
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` `0b6180fea2f2eb783f5bda16a3b3f9aadc8aaa21f7b3f16e95bf573cb2bafb66`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18514 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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