Managed XDR

4x6. (SparkRAT) — malware analysis report

File info

Filename
4x6.
File type
Zip archive data, at least v2.0 to extract
File size
11.3 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
68db327156c75a2142ef14c11c1985e3516d5b02
SHA256
4137db509165d275c2aa00d27dba70a591070e6826cd1b8d30262c11447277b0
MD5
27ba5a4b93ac13ce1d1f3fccd273ae06

Malwares

  • SparkRAT

Signatures

Execution

T1569.002 persistence_service: Starts newly created service
T1059.003 suspicious_process: Spawns a suspicious process
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1543.003 creates_service: Creates a service, that will start automatically
T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1543.003 creates_service: Creates a service, that will start automatically
T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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

T1497.001 antivm_generic_bios: Checks the BIOS version, possibly for anti-virtualization
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1574.011 persistence_services: Modifies Services registry key
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
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
T1055 injection_failed: The attempt to inject into a process has failed
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1562.001 amsi_patching_attempt: Attempts to patch Microsoft AMSI protection (amsi.dll)

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.001 antivm_generic_bios: Checks the BIOS version, possibly for anti-virtualization
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1057 process_interest: Enumerates processes
T1497.001 antivm_network_adapters: Checks NIC addresses
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1518.001 checks_wde: Checks for Windows Defender Emulation
T1057 has_wmi: Executes one or several WMI requests

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

suricata_alert: Malicious traffic detected
creates_many_processes: Spawns a lot of processes (over 70)
modifies_certs: Attempts to generate or modify system certificates
network_bind: Starts servers listening at None
dns_without_resolve: DNS query without a response
unnamed_region_exception_handler: Creates an exception handler in an unnamed region
only_exec_in_archive: The archive contains only an executable file
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
access_recyclebin: Manipulation with recyclebin detected
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay
yara_rules: Static rules

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