Managed XDR

vvmjyyguklan.exe (Ryuk) — отчёт о динамическом анализе вредоносного файла

Информация о файле

Имя файла
vvmjyyguklan.exe
Тип файла
PE32 executable (GUI) Intel 80386, for MS Windows
Размер файла
142.4 KB
Первое обнаружение
Последнее обнаружение

Окружение

win7/x86 en

Хеши

SHA1
e8db18e5dec3dd5c6b0b0d75c5d2f3766f2b36c3
SHA256
57e06ed8042ef82178ac7bdf8bfac6898d82c8d6ce5c81b637c4b212caac10f6
MD5
b8b3ce220b204d86b9de4666b41dfaba

Вредоносное ПО

  • Ryuk

Сигнатуры

Privilege Escalation

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

T1497.001 antivm_generic_services: Enumerates services, possibly for anti-virtualization
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1070 stealth_window: A process created a hidden window
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1497.001 antivm_generic_services: Enumerates services, possibly for anti-virtualization
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 process_interest: Enumerates processes
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions

Collection

T1074.001 access_recyclebin: Manipulation with recyclebin detected

Impact

T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 100 or more files)
T1486 ransomware_files: Ransomware indicators detected Ryuk (creates keys and the instruction on how to unlock the files)
T1486 ransomware_extensions: Ransomware(s) Ryuk indicators detected (specific extension is added to files)
T1486 ransomware_files_2: Ransomware(s) Ryuk indicators detected (creates keys and the instruction on how to unlock the files)
T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)
T1489 net_stop: Stops services through the use of net stop

Other

yara_rules: Static rules
ryuk: Detected Ryuk ransomware
creates_exe: Creates executable files in the file system
copies_self: Creates a copy of itself
executes_dropped_exe: Executes dropped exe files
no_graphical_activity: No graphic activity
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay

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