Managed XDR

locker.exe (Conti) — malware analysis report

File info

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

Environment

w10/x64 en

Hashes

SHA1
38f5288437f2f489bc7cf9591301a31c6900b761
SHA256
6380cbfe5dc99bf0a93ff6479fb11b643d8efa2fe6e611f76c0d5ee72b562aa7
MD5
097c41614eeace66ff9cfd50f5cc9aaa

Malwares

  • Conti

Signatures

Execution

T1047 has_wmi: Executes one or several WMI requests

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

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1552 infostealer_mail: Collects personal data from local email clients
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1057 has_wmi: Executes one or several WMI requests
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1016 get_hostname: Attempts to get hostname

Collection

T1114 infostealer_mail: Collects personal data from local email clients

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Impact

T1486 ransomware_files: Ransomware indicators detected Conti (creates keys and the instruction on how to unlock the files)
T1486 ransomware_files_2: Ransomware(s) Conti indicators detected (creates keys and the instruction on how to unlock the files)

Other

yara_rules: Static rules
network_bind: Starts servers listening at None
create_rpc_bindings: Creates RPC connection
creates_in_programdata: Creates files in the ProgramData directory
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services

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