Office (OLE) / .DOC malware analysis — malicious · dbdbd2f069d8c416

MALICIOUS

Office (OLE) / .DOC

70.0 KB Created: 2021-04-13 19:03:00 Authoring application: Microsoft Office Word

MD5: 4aee2fac47757d476bfcf89663a58ae6 SHA-1: d8727d2d44b5c513e7d566933d3fdaefae9c3b25 SHA-256: dbdbd2f069d8c41604a87f4038c37444538f6e1d4ddf0516b8ee4c5a2ef9fec5

308 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains VBA macros, including an AutoOpen macro, which is a common technique for initial execution. The presence of a Shell() call and CreateObject indicates the macro attempts to execute external commands or applications. The ClamAV detection and heuristic firings strongly suggest malicious intent, likely to download and execute a second-stage payload.

Heuristics 9

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
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
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
Environ() call (env variable access) low OLE_VBA_ENVIRON

Environ() call (env variable access)
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` `9a84f89de413dbbc3a046cf45fb6b4792ada1200e051d9ac64e22d8b6796f2fa`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1439 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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