Managed XDR

bdfb7e435f689c2c8d84d1...99937c751adb17_new.exe (Lorenz) — malware analysis report

File info

Filename
bdfb7e435f689c2c8d84d1b987c8abf84f300a1d4b9d1389b299937c751adb17_new.exe
File type
PE32 executable (console) Intel 80386, for MS Windows
File size
1 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
8e506813a5ee6130a207d4a4d770a97ef95ef9ed
SHA256
a84c7d49efa37ab376e2115043dd86595685350355c25b87d4cd83fa414b33bc
MD5
192d6d37f3316b75d2e90aeb3b25e95b

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

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
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

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

Discovery

T1083 crawls_directories: Opens a huge number of directories all over disk C: (possibly, searches for sensitive data)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
T1016 get_hostname: Attempts to get hostname

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests

Impact

T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)
T1486 ransomware_message: Ransomware indicators detected (possible ransom message creation)

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
ce_info: Lorenz Configuration Data found
lorenz: Detected Lorenz ransomware
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