Office (OLE) / .DOC malware analysis — malicious · ea26039022e9c98e

MALICIOUS

Office (OLE) / .DOC

387.5 KB Created: 2021-06-17 22:53:00 Authoring application: Microsoft Office Word

MD5: 21ebc4527aecb50fc3adc65b610d3653 SHA-1: 3cf5df8b2e1e670ea2c85eec6f048d0c889bd715 SHA-256: ea26039022e9c98e3d40700610f8c28f7d2b1d5f11394e0e22f2a40bf876ea31

222 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 presence of a Document_Open macro and CreateObject calls indicates that the script is designed to execute automatically upon opening. The script likely downloads and executes a second-stage payload, as suggested by the 'SC_STR_WSCRIPT' and 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristics. No document body text was available for analysis, and the embedded URL is not directly indicative of a payload delivery mechanism.

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` `1d9a376e10f48b0861d36fa0714e180de4938c547dc569652443c8ba4050912c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	858 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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