Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
30/03/2024, 16:49
General
- Target 3ffe8c93590efba7b73e676d5773337d_JaffaCakes118.exe
- Size 1.1MB
- Sample240330-vb4whaaf34
- SHA256 4b44fd482760bc7b2164df59d23fb07d23f5c52e4e0fc556d0d5c664bab7259f
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
23.105.131.186:8777
-
f96139ab-4501-4b7f-8179-e6ccdbddf26e
-
activate_away_mode
true
-
backup_connection_host
23.105.131.186
- backup_dns_server
-
buffer_size
65535
-
build_time
2021-07-24T21:27:22.697649536Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
8777
-
default_group
new bind
-
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
f96139ab-4501-4b7f-8179-e6ccdbddf26e
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
23.105.131.186
- 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.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 3 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3ffe8c93590efba7b73e676d5773337d_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\3ffe8c93590efba7b73e676d5773337d_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\39977349\qeferh.pif"C:\Users\Admin\AppData\Roaming\39977349\qeferh.pif" nlnw.puk2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"3⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
nlnw.puk
qeferh.pif
qnjf.apn
vovomnxe.xls
memory/1792-64-0x0000000005C10000-0x0000000005CA2000-memory.dmp
memory/1792-67-0x0000000005CD0000-0x0000000005CDA000-memory.dmp
memory/1792-62-0x0000000073DD0000-0x0000000074580000-memory.dmp
memory/1792-63-0x00000000062A0000-0x0000000006844000-memory.dmp
memory/1792-60-0x0000000001030000-0x00000000014D4000-memory.dmp
memory/1792-65-0x0000000005D90000-0x0000000005E2C000-memory.dmp
memory/1792-66-0x0000000005FA0000-0x0000000005FB0000-memory.dmp
memory/1792-61-0x0000000001030000-0x0000000001068000-memory.dmp
memory/1792-70-0x0000000005D60000-0x0000000005D6A000-memory.dmp
memory/1792-71-0x0000000005D70000-0x0000000005D8E000-memory.dmp
memory/1792-72-0x0000000005F90000-0x0000000005F9A000-memory.dmp
memory/1792-73-0x0000000005FA0000-0x0000000005FB0000-memory.dmp
memory/1792-74-0x0000000073DD0000-0x0000000074580000-memory.dmp
memory/1792-75-0x0000000005FA0000-0x0000000005FB0000-memory.dmp
memory/1792-76-0x0000000005FA0000-0x0000000005FB0000-memory.dmp