Managed XDR

77e35c838eb486adfc29d8...8057fa6120d62d0d_kreuk (Lockbit) — malware analysis report

File info

Filename
77e35c838eb486adfc29d8fb8ed1752acbea1258b85354a88057fa6120d62d0d_kreuk
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
208.5 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
70a646098bf1f3d3e0b16c6a0d10697e21f4e211
SHA256
1b68be335b45ceeff238f774657cc5af733e5d7e79d0229ef94ddba696fece09
MD5
6815e6c37e946067942b078b37123a43

Malwares

  • Lockbit

Signatures

Execution

T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests

Privilege Escalation

T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1027.002 packer_entropy: Probably contains compressed or encrypted data
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_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

T1057 has_wmi: Executes one or several WMI requests
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1082 has_wmi: Executes one or several WMI requests
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

Command and Control

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

Other

yara_rules: Static rules
network_bind: Starts servers listening at None
process_crashed: One of the processes has failed
no_graphical_activity: No graphic activity
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
pe_overlay: PE file contains overlay

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