Office (OLE) / .DOCX malware analysis — malicious · 57cd8b0bd645d7c6

MALICIOUS

Office (OLE) / .DOCX

128.5 KB Created: 2022-02-10 21:37:00 Authoring application: Microsoft Office Word

MD5: 0b10487663acb5492b22014bd91b0ff1 SHA-1: 9fa26e289e5106a085fd8f75fb7835844f2095ee SHA-256: 57cd8b0bd645d7c6f6a9a68853e48cfad99b96397bb2808e453748459d456c2b

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1059.003 Windows Command Shell T1105 Ingress Tool Transfer

The sample contains VBA macros that utilize WScript.Shell and CreateObject to download and execute a DLL payload. The script attempts to download content from a URL (though the specific URL is not fully extracted) and save it to a temporary file, then execute it using rundll32.exe. The document body, presented as an employee handbook template, serves as a social engineering lure to encourage macro execution.

Heuristics 7

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
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Suspicious extracted artifact medium 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.
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` `ee911ed5a24b73d4370e1773e2978dff138cbe92edb88fc98c78b189cd9f4cce`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3144 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 2 shell/COM execution token(s).

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