Managed XDR

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

File info

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

Environment

win7/x86 en

Hashes

SHA1
cc0b8a4cb999cae5b84f2de6cdeb2e8f54ef61f3
SHA256
02f87a79b3a534c0de736f56c716eb0f57120147a671d0707f5f7556b3604a1f
MD5
e80df10be16877439e165f63e25604bd

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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