General
- Target better.exe
- Size 203KB
- Sample251015-sehfka1wds
- SHA256 0ec84fa260e5c7bddd3af439ee3f7058f7a33400983e9b09c8d53d1dd929b1d8
- MD5 77a58642af137673b8c3a385c607b2e5
- SHA1 7653be59fd122cc7d405f906c025fe150ec6b749
- SHA512 224ba72a25d95ebda104d67cddfa5bf3bee8ab16d82b6484819fb77faab083d0e626613f3fddcc964c2b4adc408d19aa3ad2c7fbf82ed978d540e59af1765c2c
- SSDEEP 3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIPOTkWwfXxaegyJVRmLS9ttZ0t:MLV6Bta6dtJmakIM5JKPPROyyibV6
- MD5 SHA1 SHA512 SSDEEP
Behavioral task
behavioral1
Sample
better.exe
Resource
win10v2004-20250610-en
Behavioral task
behavioral2
Sample
better.exe
Resource
win11-20250905-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
70.106.203.136:4782
-
suprakini3-53700.portmap.host:4782
-
2efa8b99-3505-4ccb-a889-9b9326b10f7f
-
activate_away_mode
false
-
backup_connection_host
suprakini3-53700.portmap.host
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2025-07-27T00:24:34.920491136Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
4782
-
default_group
Default
-
enable_debug_mode
true
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
2efa8b99-3505-4ccb-a889-9b9326b10f7f
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
70.106.203.136
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
false
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Targets
-
- Target better.exe
- Size 203KB
- SHA256 0ec84fa260e5c7bddd3af439ee3f7058f7a33400983e9b09c8d53d1dd929b1d8
- MD5 77a58642af137673b8c3a385c607b2e5
- SHA1 7653be59fd122cc7d405f906c025fe150ec6b749
- SHA512 224ba72a25d95ebda104d67cddfa5bf3bee8ab16d82b6484819fb77faab083d0e626613f3fddcc964c2b4adc408d19aa3ad2c7fbf82ed978d540e59af1765c2c
- SSDEEP 3072:MzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIPOTkWwfXxaegyJVRmLS9ttZ0t:MLV6Bta6dtJmakIM5JKPPROyyibV6
- MD5 SHA1 SHA512 SSDEEP
-
Nanocore family
-
Executes dropped EXE
-
Adds Run key to start application
-
Checks whether UAC is enabled
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1