Office (OLE) / .DOC malware analysis — malicious · 8366e238982bac70

MALICIOUS

Office (OLE) / .DOC

77.0 KB Created: 2021-12-27 11:01:00 Authoring application: Microsoft Office Word

MD5: 52d12bd4537025133a02ebf10f49918d SHA-1: 707b37559152634a87819a378bd8ed7d9214d13f SHA-256: 8366e238982bac70c27f1884d72407ba93de0d5a2f7fb7103e275dfd31d084aa

242 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 function. The script uses CreateObject to execute a command. Specifically, it reconstructs a filename 'i9CardI9.h' by concatenating strings and then executes it. This indicates the document is a downloader designed to fetch and run a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.WordBlueFont12213-9918948-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.WordBlueFont12213-9918948-0
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` `01824b53ac2c7f55da88a1fc59fcd651db7362f86216abd280c5711cc310d980`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	921 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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