Managed XDR

971f0a32094b8ac1071250...e2e6b0acb016f3_new.exe (Lorenz) — malware analysis report

File info

Filename
971f0a32094b8ac10712503305ac6789048d190a209c436839e2e6b0acb016f3_new.exe
File type
PE32 executable (console) Intel 80386, for MS Windows
File size
1013 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
77b3976e4f11e02ac4d18e0b1ce92ac10a79d99e
SHA256
62910b791aa321b60f41e6a1bc56efce7f5c1252287c85c77640a16b96a42f4f
MD5
4416afe7385337d53580077729df81bf

Malwares

  • Lorenz

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

T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Command and Control

T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Impact

T1486 modifies_files: Cryptolocker indicators detected (renamed 500 or more files)
T1485 deletes_files: Removes 500 or more files from C: drive
T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)

Other

yara_rules: Static rules
lorenz: Detected Lorenz ransomware
dead_host: Connects to IP addresses that do not respond to requests
has_pdb: This executable file has a PDB path
break_limit_exceeded: Warning: function calls limit has been exceeded
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

Managed XDR