Managed XDR

ps_caeser_wmi_in_memory_exec.doc — malware analysis report

File info

Filename
ps_caeser_wmi_in_memory_exec.doc
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: 0xyf, Template: Normal.dotm, Last Saved By: 0xyf, Revision Number: 12, Name of Creating Application: Microsoft Office Word, Total Editing Time: 18:00, Create Time/Date: Fri Nov 7 17:55:00 2025, Last Saved Time/Date: Fri Nov 7 18:13:00 2025, Number of Pages: 1, Number of Words: 0, Number of Characters: 0, Security: 0
File size
37.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
c951d5f19587a80acb9a8ce2c1fae3e76569a52c
SHA256
1d20dc99243620938fef5fad2367dc812cc9d4f5b783ab4f4985510449a1ee05
MD5
7664e2a174354b95591bf96ac2851e5a

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1059.001 suspicious_process: Spawns a suspicious process
T1204.002 office_wmi_load: Microsoft Office loads WMI DLL files (WMI usage indicator in macros)
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)
T1064 office_macros: The document contains macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

Defense Evasion

T1497 debugs_self: Creates a process and debugs it
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1064 office_macros: The document contains macro
T1064 office_macros_autoexec: The document contains an auto-start macro

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1497 debugs_self: Creates a process and debugs it
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

network_powershell: Powershell process network connection detected
office_summary: The document contains suspicious metadata
creates_suspended_process: Creates suspended process
test_check_service: Starts services
writes_data: Writes big amount of data to disk
yara_rules: Static rules
dotnet_suspicious_cultureidentifier: Dotnet program contains invalid CultureIdentifier
Managed XDR