Managed XDR

rrmtwhkr.dll — malware analysis report

File info

Filename
rrmtwhkr.dll
File type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
File size
321.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
7b78030caef01987965b23ff9af6c60f68380a02
SHA256
aeb6928db14a89b7c8d33f62ee6c17f25b46e936b6b9fb8be11f4019c4c5fe8c
MD5
5ee4463da5f43ee67541b9eb1277e1bf

Signatures

Execution

T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1059.003 suspicious_process: Spawns a suspicious process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.003 executes_dropped_cmd: Executes dropped batch files

Persistence

T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Credential Access

T1552 cookie_files: Accesses cookie files
T1555.003 cookie_files: Accesses cookie files

Discovery

T1518 recon_programs: Collects information about installed programs
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Command and Control

T1032 internet_security_options: Sets Internet connections options that are not secure
T1071 internet_security_options: Sets Internet connections options that are not secure
T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

modifies_certs: Attempts to generate or modify system certificates
creates_exe: Creates executable files in the file system
suspicious_process_network: Unusual process network activity detected
mimics_agent: Uses system User-Agent for requests
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
message_box: Displays a message
error_drawtext: An error occured while executing the file
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services