Managed XDR

wextract.exe-.mui (njRAT) — отчёт о динамическом анализе вредоносного файла

Информация о файле

Имя файла
wextract.exe-.mui
Тип файла
PE32+ executable (GUI) x86-64, for MS Windows
Размер файла
9.2 MB
Первое обнаружение
Последнее обнаружение

Окружение

win7/x64 en

Хеши

SHA1
bcf2b0109feed006fe38977890801a3bffa27ec2
SHA256
504abf612edfebc2561d49146dcd25281b6620c9f5ef08ae5b8f751a93047d03
MD5
c5fb99d786096f45791cad58dd23bc61

Вредоносное ПО

  • njRAT

Сигнатуры

Initial Access

T1091 spreading_autoruninf: Creates an autorun.inf file

Execution

T1204.002 mimics_extension: Attempts to mimic the file extension

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
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

Defense Evasion

T1564.001 hides_original_file: Makes original executable file hidden
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1564.001 stealth_file: Creates hidden or system files
T1562 modify_security_warnings: Attempts to modify or disable security notifications
T1562.004 firewall_add_rule: Modifies Firewall rules
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.002 antisandbox_foregroundwindows: Checks whether any human activity is being performed by constantly checking whether the foreground window has changed
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1036 system_filename: Created a file named as a common system file
T1036 system_procname: Created a process named as a common system process
T1562 delete_fw_rule: Disables Firewall rules
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
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
T1036 mimics_extension: Attempts to mimic the file extension
T1480 system_default_lang_id_present: Checks the system language

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.002 antisandbox_foregroundwindows: Checks whether any human activity is being performed by constantly checking whether the foreground window has changed
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality

Lateral Movement

T1091 spreading_autoruninf: Creates an autorun.inf file

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Other

yara_rules: Static rules
locker_taskmgr: Disables Windows Task Manager
creates_exe: Creates executable files in the file system
creates_in_windows: Creates files in the Windows directory
suspicious_process: Spawns a suspicious process
executes_dropped_exe: Executes dropped exe files
has_pdb: This executable file has a PDB path
break_limit_exceeded: Warning: function calls limit has been exceeded
message_box: Displays a message
origin_langid: Unconventional language of the executable file
get_policy_info: Retrieves information about a Policy object

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