Managed XDR

ztywrurt.exe — malware analysis report

File info

Filename
ztywrurt.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
14.9 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
8b0c7101927edb85db7d33315c5f4977f10b4bdc
SHA256
2640e0677827803f065b1a2814a0867e756b6ec4664c14ebf855444c590fc702
MD5
3def83c16ff1db61a1a6d8f32c9a13f7

Signatures

Execution

T1569.002 persistence_service: Starts newly created service

Persistence

T1543.003 creates_service: Creates a service, that will start automatically

Privilege Escalation

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1543.003 creates_service: Creates a service, that will start automatically
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1070.004 deletes_self: Moves to different location or removes the original executable file
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562.001 disables_security: Disables Windows Security options
T1112 creates_largekey: Saves very large data in the registry, can be used to save the configuration or body of the malware
T1096 persistence_ads: Creates Alternate Data Stream (ADS)
T1562.004 firewall_add_rule: Modifies Firewall rules
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name

Other

yara_rules: Static rules
creates_in_windows: Creates files in the Windows directory
network_bind: Starts servers listening at 0.0.0.0:2110
dns_without_resolve: DNS query without a response
suspicious_process: Spawns a suspicious process
network_ftp: Performs FTP requests
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
creates_exe: Creates executable files in the file system
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call