Office (OLE) / .DOC malware analysis — malicious · 33c045ca4e23211f

MALICIOUS

Office (OLE) / .DOC

550.5 KB Created: 2023-07-12 13:29:00 Authoring application: Microsoft Office Word First seen: 2023-09-11

MD5: dcd230ff4b3a2e12974944e01581de5c SHA-1: ee4ea834e8b62ee5423ee225c5f3207707ee44e8 SHA-256: 33c045ca4e23211f86fc6fd1bcd6e8651f331ac9b4b936e6dda7007e1161df42

262 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1059.003 Windows Command Shell T1105 Ingress Tool Transfer

The AutoOpen VBA macro executes a command that uses curl to download a file named 'daviiid.exe' from the reconstructed URL 'http://ps1cdn.discorom/attachments/1077543461617676409/1150546097329160192/daviiid.exe' into the user's APPDATA directory and then executes it. This indicates a downloader or droppper functionality.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.Sagent-10028040-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Sagent-10028040-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
cmd.exe reference in VBA high OLE_VBA_CMD

cmd.exe reference in VBA
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.
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` `91f2b286d155edc9d3aa9b27e9bc95048b4230eb8c9035b24fe8f3230ece0fb7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1010 bytes

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