Office (OLE) / .DOC malware analysis — malicious · 523467ea00cd1683

MALICIOUS

Office (OLE) / .DOC

147.0 KB Created: 2021-04-27 23:24:00 Authoring application: Microsoft Office Word

MD5: 4483a62c42f0566f53d6a8f99177430a SHA-1: 81d0d35195d2b901d32dbae3919453a9e236052d SHA-256: 523467ea00cd16838f931a9516fa3fbbad9aa9e84f30b1d40ba028390c4bb8f2

220 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The presence of CreateObject calls and references to WScript further suggest the execution of arbitrary code. The embedded URL is likely used to download and execute a secondary payload. The document body content is heavily corrupted and unreadable, providing no additional context.

Heuristics 7

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://scaladevelopments.scaladevco.com/13Z/IMG_0540001825.ex
- http://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `7c2894503affe33b6291698d3feb75e157752c62d79e81f38a5212b087619f9e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	915 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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