Managed XDR

winkvrb.exe — malware analysis report

File info

Filename
winkvrb.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
282 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
8ff1c438748ff95e7cdc465989c7f4f38e114a77
SHA256
b0b7d58ec9f492a6e3c09510d233750d60dcce745868e799a08ca026434f56f7
MD5
50347de4d8d4a78f91118f409025f05d

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

T1562.001 disables_security: Disables Windows Security options
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562 modify_security_center_warnings: Attempts to modify or disable Security Center notifications
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
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
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

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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

Collection

T1115 checks_clipboard: Monitors clipboard data
T1115 set_clipboard_data: Sets data to clipboard

Command and Control

T1568.002 dga_domains: Connects to DGA domains
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl

Impact

T1490 disables_system_restore: Disables System Restore

Other

suricata_alert: Malicious traffic detected
network_bind: Starts servers listening at None
dns_without_resolve: DNS query without a response
dns_tld_su: Connects to TLD .SU, possibly malware
dead_host: Connects to IP addresses that do not respond to requests
no_graphical_activity: No graphic activity
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
yara_rules: Static rules
Managed XDR