Managed XDR

vtdl_4d2uusff (Lockbit) — malware analysis report

File info

Filename
vtdl_4d2uusff
File type
PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
File size
344.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
90871dda64772f16166fe68a39794aacebc91f65
SHA256
ef507e58fe8de56484bad6f05cb3c61227d6bc2ba39a2fb6a4c0d9a20e829ad8
MD5
d1d04cb6b1cb025d12710ef7deab5e86

Malwares

  • Lockbit

Signatures

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1134 sets_privilegies_via_rtladjustprivilege: Sets process privilege via RtlAdjustPrivilege
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

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1027.002 packer_upx: The executable file is compressed using UPX
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1134 sets_privilegies_via_rtladjustprivilege: Sets process privilege via RtlAdjustPrivilege
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_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1518 locates_browser: Attempts to identify where browsers are installed

Other

yara_rules: Static rules
lockbit: Detected ransomware Lockbit
creates_in_windows: Creates files in the Windows directory
no_graphical_activity: No graphic activity
checktokenmembership: Checks user token with CheckTokenMembership call

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