Office (OLE) / .DOCX malware analysis — malicious · a426cb8f922a2dc6

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 50a68b4bad8795df978ef5ec562f62c4 SHA-1: feb8aced21745abbb20f4496e98d86e58cb51ecf SHA-256: a426cb8f922a2dc67d3418691b4a3c3c1a1a824e813a8c08b1bba6175089524e

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically an auto-executing Document_Open macro that uses CreateObject, strongly indicate malicious intent. The macro is designed to download and execute a secondary payload, as evidenced by the 'Doc.Trojan.Agent-9780503-0' detection name. The document body content is heavily obfuscated and unreadable, providing no direct clues to the lure.

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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