Managed XDR

d5d744e0f7984ec01593da...ff4f31de5dbf94e38f.exe (Ryuk) — malware analysis report

File info

Filename
d5d744e0f7984ec01593da35f26bf24e95e4b1cc8bd1c0ff4f31de5dbf94e38f.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
133.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
4d8a885624f580a3578026acae4f0bd53032db5d
SHA256
d5d744e0f7984ec01593da35f26bf24e95e4b1cc8bd1c0ff4f31de5dbf94e38f
MD5
ba59b52b445f45aaf8fb707445587b48

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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1070 stealth_window: A process created a hidden window

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

ryuk: Detected Ryuk ransomware
yara_rules: Static rules
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
creates_suspended_process: Creates suspended process
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay

Related reports

Managed XDR