Office (OLE) / .DOC malware analysis — malicious · b4fdb77c5b6eede5

MALICIOUS

Office (OLE) / .DOC

109.5 KB Created: 2018-05-25 14:27:00 Authoring application: Microsoft Office Word

MD5: be1f448868949ba25e0b199e1e3139b2 SHA-1: 87435983272d0ff58ffaf105452e3e6322694ed7 SHA-256: b4fdb77c5b6eede55fa1025dcbd522ada24dc6fef82efbeac60934cb6a8e8005

260 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains a malicious VBA macro, indicated by the AutoOpen and Shell() function firings. The presence of 'macros.bas' and the ClamAV detection 'Doc.Malware.Valyria-6883774-0' strongly suggest malicious intent. The macro likely uses the Shell() function to download and execute a secondary payload, a common technique for malware delivery.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.Valyria-6883774-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Valyria-6883774-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
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` `f20c39954b50a630a38e1fabe80ded895778d94fe0014d05ebc93292887cc9af`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18216 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.