Office (OLE) / .DOCX malware analysis — malicious · f34af594fd62ecec

MALICIOUS

Office (OLE) / .DOCX

167.6 KB Created: 2020-09-24 06:41:00 Authoring application: Microsoft Office Word

MD5: 22c464ded636f26eaec961d49b4f5a00 SHA-1: ca1a08cf8fc42b0df63e4bdff70b2245d9a2c48f SHA-256: f34af594fd62ecec200ed5f940b536482a124fcddaad15776b699c6a61869b4e

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a malicious Office document containing VBA macros. The critical ClamAV detection and high-severity heuristics for VBA auto-execution and CreateObject calls indicate malicious intent. The Document_Open macro is designed to execute arbitrary code, likely to download and run a second-stage payload. The obfuscated document body text, while difficult to interpret directly, contains strings that appear to be related to PowerShell execution, further supporting the malicious nature of the document.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
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` `5fc186fdbad9f31c9e64d83153a39dd477b4feadffd069d1417de0a82694326f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18827 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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