Managed XDR

c0r100747t210372092.eml — malware analysis report

File info

Filename
c0r100747t210372092.eml
File type
SMTP mail, ASCII text
File size
522.2 KB
First seen
Last seen

Environment

w11/x64 en

Hashes

SHA1
4bace6fdeb110c55561eb753ee5a6e12c601d05a
SHA256
d783ff0e81e1bdac9595845ff01baba70e65820ab38fb7ae5f27073bf1a4be8d
MD5
43b795fe3fef38ec22b85196a7e7e259

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious PowerShell process
T1204.002 mimics_extension: Attempts to mimic the file extension
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1037 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1037 persistence_autorun: Makes itself run automatically on Windows startup
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1055 injection_failed: The attempt to inject into a process has failed

Defense Evasion

T1564.001 stealth_file: Creates hidden or system files
T1036 mimics_extension: Attempts to mimic the file extension
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1055 injection_failed: The attempt to inject into a process has failed
T1027 many_env_vars: An extensive number of environment variables has been created (possible sign of obfuscation)
T1202 lolbin_conhost: conhost.exe spawning unexpected processes via --headless argument
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1562.001 amsi_patching_attempt: Attempts to patch Microsoft AMSI protection (amsi.dll)
T1070 stealth_window: A process created a hidden window

Discovery

T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Other

copies_self: Creates a copy of itself
creates_exe: Creates executable files in the file system
network_powershell: PowerShell process network connection detected
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
test_check_service: Starts services
writes_data: Writes big amount of data to disk