Managed XDR

d06b3960bbb5b12b3b5827296d6551db.virus (Ryuk) — malware analysis report

File info

Filename
d06b3960bbb5b12b3b5827296d6551db.virus
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
120 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
58c0a54b4c6dd1f616631ffd973a54ee77b50c55
SHA256
af5169631789347e6884a5402a945d7eac6d07784a79caf858ab59c8e2201e8b
MD5
d06b3960bbb5b12b3b5827296d6551db

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

T1222 icacls: May obtain or change Discretionary access control lists (DACLs)
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

Discovery

T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)

Collection

T1074.001 access_recyclebin: Manipulation with recyclebin detected

Impact

T1486 modifies_files2: Cryptolocker indicators detected (100 or more files are modified)
T1486 modifies_files: Cryptolocker indicators detected (renamed 100 or more files)
T1486 ransomware_files: Ransomware indicators detected Ryuk (creates keys and the instruction on how to unlock the files)
T1486 ransomware_extensions: Ransomware(s) Ryuk indicators detected (specific extension is added to files)
T1486 ransomware_files_2: Ransomware(s) Ryuk indicators detected (creates keys and the instruction on how to unlock the files)

Other

yara_rules: Static rules
ryuk: Detected Ryuk ransomware
no_graphical_activity: No graphic activity

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