Office (OLE) / .DOC malware analysis — malicious · e0d68e80bf7c351c

MALICIOUS

Office (OLE) / .DOC

179.5 KB Created: 2022-03-22 11:42:00 Authoring application: Microsoft Office Word First seen: 2022-03-23

MD5: 260916e4b0743946256c1014d7c01f3d SHA-1: 665289d1d973333f168ed66203781ac76b49efca SHA-256: e0d68e80bf7c351cb2eeb81994b2d7aa3dffe4f9b71dd6d5e469c894f9ab614b

342 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1204.002 Malicious File

The sample contains a VBA macro within a DOC file, which is designed to execute code. The macro utilizes `CreateObject("WScript.Shell")` and `Shell()` calls, indicating an intent to run arbitrary commands. Specifically, the macro attempts to leverage `WScript.Shell` to execute commands, likely to download and run a second-stage payload. The presence of `Document_Open` and `SC_STR_WSCRIPT` heuristics further supports this malicious behavior.

Heuristics 9

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
WScript.Shell usage critical OLE_VBA_WSCRIPT

WScript.Shell usage
Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
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` `94798756e04c0df77437425b2afa7e8321448ab7bec0fad84fd5f6144d9d6114`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	36861 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 shell/COM execution token(s). Carved artifact contains 124 long base64-like blob(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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