General
- Target isbrucker.nl.exe
- Size 203KB
- Sample260628-jle5caf121
- SHA256 0c8a924f2c6a6a7adad039bc46e383353f7a57edef834619be48c359316e1abd
- MD5 f3a88a784b88ccf46b47fd703d6023bc
- SHA1 0e245438f4d21f303c1ddf4fd8bcc5461ae455cd
- SHA512 8ccbf49707d348d70ff8b3ec5a017e6881465bc528833ee30403732270b3b48b02fa47c613d912e13b54bb1f900a2c5561df6286a4bcb66c6fb09710d9d2e788
- SSDEEP 6144:MLV6Bta6dtJmakIM5eEN/wjwJsvle+o9f/8:MLV6BtpmkkEleps
- TLSH T1DA14CF1577A94A2FE2DE86B9701251538379C2E398C3F7EE28D854B74F663E506071C3
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
isbrucker.nl.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
isbrucker.nl.exe
Resource
win11ltsc2024-20260617-en
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
isbrucker.nl/vi-vn/:443
-
www.isbrucker.nl/vi-vn/:443
-
65540caf-2b2a-44b2-b65f-f54c95ff4897
-
activate_away_mode
true
-
backup_connection_host
www.isbrucker.nl/vi-vn/
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2026-04-09T09:21:36.271330736Z
-
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
443
-
default_group
vin88
-
enable_debug_mode
false
-
gc_threshold
1.048576e+07
-
keep_alive_timeout
30000
-
keyboard_logging
false
-
lan_timeout
2500
-
max_packet_size
1.048576e+07
-
mutex
65540caf-2b2a-44b2-b65f-f54c95ff4897
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
isbrucker.nl/vi-vn/
-
primary_dns_server
8.8.8.8
-
request_elevation
false
-
restart_delay
5000
-
run_delay
9
-
run_on_startup
false
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Targets
-
- Target isbrucker.nl.exe
- Size 203KB
- SHA256 0c8a924f2c6a6a7adad039bc46e383353f7a57edef834619be48c359316e1abd
- MD5 f3a88a784b88ccf46b47fd703d6023bc
- SHA1 0e245438f4d21f303c1ddf4fd8bcc5461ae455cd
- SHA512 8ccbf49707d348d70ff8b3ec5a017e6881465bc528833ee30403732270b3b48b02fa47c613d912e13b54bb1f900a2c5561df6286a4bcb66c6fb09710d9d2e788
- SSDEEP 6144:MLV6Bta6dtJmakIM5eEN/wjwJsvle+o9f/8:MLV6BtpmkkEleps
- TLSH T1DA14CF1577A94A2FE2DE86B9701251538379C2E398C3F7EE28D854B74F663E506071C3
- MD5 SHA1 SHA512 SSDEEP TLSH
-
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