Office (OLE) / .DOCX malware analysis — malicious · 319abfd48f68a1c0

MALICIOUS

Office (OLE) / .DOCX

164.4 KB Created: 2020-10-20 08:13:00 Authoring application: Microsoft Office Word

MD5: 6b91d1aff4f5e253d960132431b8950a SHA-1: 58806d2d098ebc951c8ce51ad3d9f0969b3ccc4d SHA-256: 319abfd48f68a1c007a15086b1036a98c17d9fdb9c8dd3628a56dafceb5290bf

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains a VBA macro that automatically executes upon opening, as indicated by the 'Document_Open' macro and 'CreateObject' call heuristics. This macro is likely designed to download and execute a second-stage payload, as suggested by the ClamAV detection 'Doc.Trojan.Agent-9781037-0'. The presence of VBA macros and the auto-execution behavior are strong indicators of malicious intent.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9781037-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9781037-0
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` `8eb6ba0866f4c6c9ad4d97b0723246709e3ca63ed0491e35acc3191e90884d63`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17541 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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