Managed XDR

cheat.zip (Tinba, Coinminer) — malware analysis report

File info

Filename
cheat.zip
File type
Zip archive data, at least v5.1 to extract
File size
5.8 MB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
67c300ab6021134ea6850701b4e8c7a20dcc334f
SHA256
73c87fd845ffeb95c0c0e0dd2aa02d592cc940c3dc529a0b93db0bf295f13d48
MD5
17106afe8d437026e7a9fc110d35dad8

Malwares

  • Tinba
  • Coinminer

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.003 suspicious_process: Spawns a suspicious process
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1059.005 obfuscated_vbe: Detected obfuscated VBE script
T1059.001 suspicious_powershell: Creates suspicious powershell process
T1569.002 persistence_service: Starts newly created service
T1047 has_wmi: Executes one or several WMI requests
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.005 obfuscated_vbs: Detected obfuscated VBS
T1559.001 com_exec: Execution of Win32_Process.Create COM Method

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1543.003 creates_service: Creates a service, that will start automatically
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1055.012 injection_runpe: Injects code into another process
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1543.003 creates_service: Creates a service, that will start automatically
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 sets_privilegies_via_rtladjustprivilege: Sets process privilege via RtlAdjustPrivilege
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

T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1055.012 injection_runpe: Injects code into another process
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1027 obfuscated_vbe: Detected obfuscated VBE script
T1497.001 antivm_firmware: Attempts to detect VM by firmware
T1497.001 antivm_sandboxie: Attempts to detect Sandboxie
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497 debugs_self: Creates a process and debugs it
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.001 antivm_directory_objects: Scans directory objects, possibly to find VM indicators
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1036 system_filename: Created a file named as a common system file
T1497.001 antivm_network_adapters: Checks NIC addresses
T1027 obfuscated_vbs: Detected obfuscated VBS
T1497 antidbg_strings: Checks for malware analysis tools (specific strings found)
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 sets_privilegies_via_rtladjustprivilege: Sets process privilege via RtlAdjustPrivilege
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
T1480 system_default_lang_id_present: Checks the system language
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1562.001 windows_defender_add_exclusion: Adds a path to Microsoft Defender exclusion list

Credential Access

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
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
T1003.001 dumps_lsass: Dumps lsass.exe process (probably, to extract credentials)

Discovery

T1497.001 antivm_firmware: Attempts to detect VM by firmware
T1497.001 antivm_sandboxie: Attempts to detect Sandboxie
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1518.001 antiav_detectfile: Attempts to detect installed antiviruses by a certain directory
T1518.001 antiav_detectservice: Attempts to detect installed antiviruses by a certain service
T1497 debugs_self: Creates a process and debugs it
T1497 antidbg_query_system: Checks for kernel debugger (SystemKernelDebuggerInformation)
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.001 antivm_directory_objects: Scans directory objects, possibly to find VM indicators
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1057 pidbruteforce: Enumerates processes using PID Bruteforce
T1057 has_wmi: Executes one or several WMI requests
T1057 process_interest: Enumerates processes
T1497.001 antivm_network_adapters: Checks NIC addresses
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 antidbg_strings: Checks for malware analysis tools (specific strings found)
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1082 reads_csrss: Attempts to read csrss.exe memory
T1082 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1135 server_share_info: Retrieves information about each shared resource on a server

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Impact

T1496 cryptopool_domains: Connects to crypto curency mining pool
T1489 net_stop: Stops services through the use of net stop
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
mimikatz2: Reads lsass.exe memory and sets privileges
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
changes_power_settings: Changes power settings (disables hibernation or sleeping mode)
suspicious_process_network: Unusual process network activity detected
codepage: Checks the system code page
dead_host: Connects to IP addresses that do not respond to requests
executes_dropped_exe: Executes dropped exe files
unsigned_driver_drop: Sample is not signed and drops a device driver
driver_load: Loads a driver
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
message_box: Displays a message
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services

Related reports