Office (OLE) / .DOC malware analysis — malicious · 2cfcdc92bc223c7b

MALICIOUS

Office (OLE) / .DOC

387.5 KB Created: 2021-06-15 09:07:00 Authoring application: Microsoft Office Word

MD5: a33a2def9e16f247a10b149816311db2 SHA-1: 4f3f1eb4fc4ae050fc56f72cccece8c7c4cc513e SHA-256: 2cfcdc92bc223c7bdd1a0b69ea31167970bb9fae14c53517682061df89635285

222 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious OLE document containing VBA macros. The 'Document_Open' macro is present and uses 'CreateObject' to likely execute a Windows Script Host payload. The presence of VBA macros and the auto-execution trigger strongly indicate a malicious intent to run arbitrary code upon opening the document.

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 — context-specific rules above attribute URLs they actually evaluated; this rule lists URLs that were present in the bytes but were not otherwise tied to a specific finding.

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` `cb79d8ea9a8bcdb18956b4823cdd7774f77e3a8cddbcc188f912e34a63e72a3f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	855 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 9 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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