Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20260129-en - resource tags
- submitted
09/04/2026, 10:30
General
- Target 2026-04-09_be2c20198410f92913720ef2fa96bda9_amadey_elex_nanocore_remcos_smoke-loader_stealc_stop.exe
- Size 502KB
- Sample260409-mjvc2aes2j
- SHA256 99a8982be332f61ff017068f5d70a31b547dba3da70b5b1ed5c946abe6b2459d
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
jamesbrooker.hopto.org:2211
-
2d8bcbea-b25a-4884-bf3e-b53ba5a566ba
-
activate_away_mode
true
-
backup_connection_host
jamesbrooker.hopto.org
- backup_dns_server
-
buffer_size
65535
-
build_time
2017-11-10T03:03:59.946538536Z
-
bypass_user_account_control
false
-
bypass_user_account_control_data
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
-
clear_access_control
false
-
clear_zone_identifier
true
-
connect_delay
4000
-
connection_port
2211
-
default_group
New Goat
-
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
2d8bcbea-b25a-4884-bf3e-b53ba5a566ba
-
mutex_timeout
5000
-
prevent_system_sleep
true
-
primary_connection_host
jamesbrooker.hopto.org
- primary_dns_server
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
false
-
set_critical_process
true
-
timeout_interval
5000
-
use_custom_dns_server
false
-
version
1.2.2.0
-
wan_timeout
8000
Signatures
- NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
- Nanocore family
- UPX dump on OEP (original entry point) 7 IoCs
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- UPX packed file 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 2 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-04-09_be2c20198410f92913720ef2fa96bda9_amadey_elex_nanocore_remcos_smoke-loader_stealc_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-09_be2c20198410f92913720ef2fa96bda9_amadey_elex_nanocore_remcos_smoke-loader_stealc_stop.exe"1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF3A7.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF425.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\2026-04-09_be2c20198410f92913720ef2fa96bda9_amadey_elex_nanocore_remcos_smoke-loader_stealc_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-04-09_be2c20198410f92913720ef2fa96bda9_amadey_elex_nanocore_remcos_smoke-loader_stealc_stop.exe"1⤵
- System Location Discovery: System Language Discovery
-
C:\Program Files (x86)\TCP Service\tcpsv.exe"C:\Program Files (x86)\TCP Service\tcpsv.exe"1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
Network
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
1Replay Monitor
Loading Replay Monitor...
Downloads
tcpsv.exe
tmpF3A7.tmp
tmpF425.tmp
memory/872-48-0x0000000000400000-0x0000000000480000-memory.dmp
memory/872-82-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/872-78-0x0000000000400000-0x0000000000480000-memory.dmp
memory/872-37-0x0000000000810000-0x0000000000848000-memory.dmp
memory/4628-49-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4628-31-0x0000000000400000-0x0000000000480000-memory.dmp
memory/4628-60-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4628-61-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4628-62-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4628-63-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4628-80-0x0000000000400000-0x0000000000480000-memory.dmp
memory/4628-81-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4628-64-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4628-34-0x0000000000730000-0x0000000000768000-memory.dmp
memory/4980-22-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-68-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-19-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-20-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-0-0x0000000000400000-0x0000000000480000-memory.dmp
memory/4980-21-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-18-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-17-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-16-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-15-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-65-0x0000000000400000-0x0000000000480000-memory.dmp
memory/4980-66-0x0000000000630000-0x0000000000640000-memory.dmp
memory/4980-69-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-30-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-67-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-70-0x0000000075C70000-0x0000000075C71000-memory.dmp
memory/4980-71-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-73-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-72-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-74-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-75-0x0000000075C50000-0x0000000075D40000-memory.dmp
memory/4980-13-0x0000000000630000-0x0000000000640000-memory.dmp
memory/4980-14-0x0000000075C70000-0x0000000075C71000-memory.dmp
memory/4980-2-0x00000000009A0000-0x00000000009D8000-memory.dmp
memory/4980-1-0x00000000009A0000-0x00000000009D8000-memory.dmp
memory/4980-83-0x0000000075C50000-0x0000000075D40000-memory.dmp