Office (OLE) / .DOC malware analysis — malicious · 2966d4d96bf053a1

MALICIOUS

Office (OLE) / .DOC

37.5 KB Created: 2021-03-17 16:37:00 Authoring application: Microsoft Office Word

MD5: 51f6b8678de15611bf15e7544dc87c87 SHA-1: 4d04e4490d3bb3590d94bb2dc8038011fadfbec4 SHA-256: 2966d4d96bf053a15a2665464327f3fd5165bd03587679452b1db4f3f03946e9

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file contains VBA macros, specifically an AutoOpen macro, which is a strong indicator of malicious intent. The presence of CreateObject and GetObject calls within the VBA code suggests the macro attempts to interact with the system or launch other processes. The ClamAV detection and static triage further confirm its malicious nature, likely as a downloader for further stages.

Heuristics 8

ClamAV: Doc.Malware.Valyria-6923224-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Valyria-6923224-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
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` `43886948bec399911d0aa0d0b83a0fbdf081ab9405c39bc623cb19474460d150`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	3443 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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