Managed XDR

wextract.exe-.mui (Amadey, BlackMatter, Lockbit, RedCurl, Tinba, Symmi) — отчёт о динамическом анализе вредоносного файла

Информация о файле

Имя файла
wextract.exe-.mui
Тип файла
PE32 executable (GUI) Intel 80386, for MS Windows
Размер файла
2.9 MB
Первое обнаружение
Последнее обнаружение

Окружение

win7/x86 en

Хеши

SHA1
219da4a2e7a9479b0b4e2c891541b0f0f731eef5
SHA256
b70739c5eaba90b923e33bb36eb032207b041d66d0ad5a68dade40089c87bb37
MD5
a6efc3997788ec62a8702aedfcd222d7

Вредоносное ПО

  • Amadey
  • BlackMatter
  • Lockbit
  • RedCurl
  • Tinba
  • Symmi

Сигнатуры

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1047 has_wmi: Executes one or several WMI requests
T1059 autoit: AutoIt script execution detected
T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 suspicious_batch: Suspicious batch
T1059.003 url_cmdline: Cmdline of process contains URL

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
T1547.009 suspicious_desktop_ini: Creates desktop.ini file with suspicious content

Privilege Escalation

T1055.012 injection_runpe: Injects code into another process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
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
T1547.009 suspicious_desktop_ini: Creates desktop.ini file with suspicious content

Defense Evasion

T1055.012 injection_runpe: Injects code into another process
T1562.001 disables_security: Disables Windows Security options
T1027.002 packer_themida: Themida packer signatures detected
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1574.011 persistence_services: Modifies Services registry key
T1027.002 packer_enigma: Enigma protector indicators detected
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1480 system_default_lang_id_present: Checks the system language
T1070 stealth_window: A process created a hidden window

Credential Access

T1552 infostealer_mail: Collects personal data from local email clients
T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1552 cookie_files: Accesses cookie files
T1555.003 cookie_files: Accesses cookie files

Discovery

T1082 has_wmi: Executes one or several WMI requests
T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
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
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1057 process_interest: Enumerates processes
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1082 reads_csrss: Attempts to read csrss.exe memory

Collection

T1114 infostealer_mail: Collects personal data from local email clients
T1074.001 access_recyclebin: Manipulation with recyclebin detected

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Impact

T1486 ransomware_windows_possible: Ransomware indicators detected (possible ransom window creation)
T1561 wiper_zeroed_bytes: Overwrites multiple files with zero bytes (hex 00)
T1486 modifies_files2: Cryptolocker indicators detected (100 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 100 or more files)
T1489 stops_service: Stops Windows services
T1565.001 overwrites_firefox_settings: Modifies Mozilla Firefox settings
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)
T1486 ransomware_files: Ransomware indicators detected BlackMatter (creates keys and the instruction on how to unlock the files)
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
ce_info: Lockbit Configuration Data found
redcurl_extractor: Specific to RedCurl.Extractor behaviour has been detected
lockbit: Detected ransomware Lockbit
executes_dropped_exe: Executes dropped exe files
dll_mapping_exception: Failed mapping of dll with exception
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
create_process_failed: Could not start the process
codepage: Checks the system code page
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
checks_install_language: Checks Windows installation language
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
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk

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