Office (OLE) / .DOCX malware analysis — malicious · 7d3781658117d300

MALICIOUS

Office (OLE) / .DOCX

158.2 KB Created: 2020-10-19 11:46:00 Authoring application: Microsoft Office Word

MD5: 65e5b057e69943265df8c25ed5400a36 SHA-1: cdb2b9fdfd7c2357519d809b38b4078743b1ea4f SHA-256: 7d3781658117d300fec6caf6a6084d4fa00c5797bacd1d90be490ce414b7f511

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open macro that utilizes CreateObject. This indicates an attempt to execute arbitrary code upon opening the document. The ClamAV detection and heuristic firings strongly suggest malicious intent, likely to download and execute a second-stage payload. No specific family could be identified.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9780503-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9780503-0
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` `df3f11a486897c7a189da6e4d0ac7fa240cbe9ec205152865e455c6dee8f09c5`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15642 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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