Managed XDR

home-petik-ss-malware-...cb153ec5201c5baed_ryuk (Ryuk) — malware analysis report

File info

Filename
home-petik-ss-malware-2025-03-14_b6b531d5477d737cb153ec5201c5baed_ryuk
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
135 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
fe228587cb8ff1565fbc0e825f45fac0726c4ec5
SHA256
9d2bcfa82facbaff874c61534ef4bc647ee072b218c4903e87012e1683e30bec
MD5
b6b531d5477d737cb153ec5201c5baed

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

T1036.001 invalid_authenticode: Digital signature of the executable file has failed the verification
T1564.001 stealth_file: Creates hidden or system files
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

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
pe_overlay: PE file contains overlay

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