Office (OLE) / .DOC malware analysis — malicious · 9185132f689a984d

MALICIOUS

Office (OLE) / .DOC

255.6 KB Created: 2019-03-14 14:54:00 Authoring application: Microsoft Office Word

MD5: 12944e3637a02c39160636355d67f511 SHA-1: d2e896c71a124739c6823e7456e0d79d79d96076 SHA-256: 9185132f689a984dd6a9af9d071f5fa70ba158b72421eeb8b5181814e04cc1e5

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains VBA macros, specifically an AutoOpen macro, which is a common technique for initial execution. The 'GetObject' call and VBA p-code auto-execution further indicate malicious intent. The presence of 'macros.bas' suggests obfuscated VBA code designed to download and execute a secondary payload. The ClamAV detection confirms its malicious nature.

Heuristics 7

ClamAV: Doc.Malware.00536d-6895485-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.00536d-6895485-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `5758746c64a0f3ed63d8578a442221aaab13861163a06087b74adcd7f6bfae8e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	66304 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 154 Chr/ChrW string-construction calls.

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