Managed XDR

c-users-user-desktop-rnrvixmzclan.exe (Ryuk) — malware analysis report

File info

Filename
c-users-user-desktop-rnrvixmzclan.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
134 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
46160f41dc889273ae770fbf61c66ac4f5cbfe22
SHA256
da34fb291173c2754aa9b9bc9ecd71d8dcca80a71f3db4a321203e3202bd9d13
MD5
8696adf98cd6ec1eb45ff8931de8c452

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

Related reports