Managed XDR

vtdl_je4bcp7n (Lorenz) — malware analysis report

File info

Filename
vtdl_je4bcp7n
File type
PE32 executable (console) Intel 80386, for MS Windows
File size
345.6 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
801cae1198d283d7c3a844e8d136a8c32e20ec43
SHA256
e96d0b0891d61d8f7261e60c7bc43a38b2c28b3526bfc58506bf1f4eb06f72ab
MD5
3e5c639cc58aa4d3fab0552b103e9993

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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name
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

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1033 recon_beacon: The process has sent information about the computer over the network
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497 evasion_diskenum: Sandbox evasion using enumeration of partitions
T1497.001 antivm_queries_computername: Retrieves the computer name

Command and Control

T1071.001 recon_beacon: The process has sent information about the computer over the network
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Impact

T1486 ransomware_extensions: Ransomware(s) Lorenz indicators detected (specific extension is added to files)
T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)

Other

lorenz: Detected Lorenz ransomware
creates_in_windows: Creates files in the Windows directory
cryptolocker_wallpaper: Ransomware indicators detected (changes the desktop wallpaper file)
dead_host: Connects to IP addresses that do not respond to requests
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section names
create_rpc_bindings: Creates RPC connection
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
writes_data: Writes big amount of data to disk

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