Managed XDR

vtdl_1742296499_kn0_wd2n (Grimagent, Tinba, Ryuk) — malware analysis report

File info

Filename
vtdl_1742296499_kn0_wd2n
File type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
File size
126.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
2ae7a7858f99d48ab15490c0afa2f2406f428183
SHA256
0ece3fd0d8541d2a1067ac62183e5fbcab4402e47e0689944c9bb2350a698fbc
MD5
f70e272759cfa33ce6612d6a82c84bb6

Malwares

  • Grimagent
  • Tinba
  • Ryuk

Signatures

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1222 icacls: May obtain or change Discretionary access control lists (DACLs)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the 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 ransomware_files: Ransomware indicators detected Ryuk (creates keys and the instruction on how to unlock the 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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