Managed XDR

cryptor.exe (Conti) — malware analysis report

File info

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

Environment

w10/x64 en

Hashes

SHA1
f9bc691ffcb9e7aa1f9ec45b05259ea576d46a37
SHA256
f134202e8554b4d2d866a06048b30c25ff1ecdcdc82d74fac222f23c134d6845
MD5
d3f3bf0894a945b9fb33ab4337df51c4

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 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
T1552.001 infostealer_bitcoin: Attempts to obtain access to Bitcoin/ALTCoin wallets
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1057 has_wmi: Executes one or several WMI requests
T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
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 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1486 modifies_files2: Cryptolocker indicators detected (500 or more files are modified)
T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behavior)
T1489 service_control_stop: Stops services via ControlService

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
writes_data: Writes big amount of data to disk

Related reports