Office (OLE) / .DOC malware analysis — malicious · ac9bdf7234d6fdcb

MALICIOUS

Office (OLE) / .DOC

115.7 KB Created: 2020-09-08 12:44:00 Authoring application: Microsoft Office Word

MD5: 67b09cf5818d6ae54beacae014350608 SHA-1: 2d3452cfe9af9f74b34398c062bd70844c9e8a90 SHA-256: ac9bdf7234d6fdcb50f8be07e0eadbcec5e07e028aa44d85cda6805a24d86e62

180 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a malicious OLE document containing VBA macros. The 'Document_Open' macro is present and configured to execute automatically upon opening the document. High-confidence heuristics indicate the use of 'CreateObject' and VBA p-code auto-execution, suggesting the macro attempts to download and execute a second-stage payload. No specific family could be identified, but the technique is common for initial access.

Heuristics 6

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` `777d79a4e05bd8799047a5b2f71b7eb6dfcb854480ef28b3824ff42cf75e9d9c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	12566 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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