Managed XDR

home-petik-ss-malware-...7b3ff93c64612c8fa_ryuk (Ryuk) — malware analysis report

File info

Filename
home-petik-ss-malware-2025-03-20_89638b8691bbabd7b3ff93c64612c8fa_ryuk
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
139.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
1301e3b4efe398c067e0696a3db41f962c7e4593
SHA256
5d3d9b6382e76ef0385c275bff4cb58893befc6e5289e9023eace844ce87119f
MD5
89638b8691bbabd7b3ff93c64612c8fa

Malwares

  • Ryuk

Signatures

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

T1564.001 stealth_file: Creates hidden or system files
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Other

yara_rules: Static rules
ryuk: Detected Ryuk ransomware
copies_self: Creates a copy of itself
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
no_graphical_activity: No graphic activity
get_policy_info: Retrieves information about a Policy object

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