Managed XDR

silenttrinity.tar.gz (Mimikatz) — malware analysis report

File info

Filename
silenttrinity.tar.gz
File type
gzip compressed data, from Unix
File size
3.7 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
aeb6a6f31c823c72d6004244979174c0f938434c
SHA256
1543f1e1ae7b02301df10750ed1afaa2a43e6f27f86f56969cddc18db3562cf6
MD5
056cee9b52f50a61fe17a0a571c266fd

Malwares

  • Mimikatz

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
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

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

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
no_graphical_activity: No graphic activity
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
many_files_in_archive: The archive contains more than 5 files

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