Analysis
- max time kernel
145s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
17/04/2024, 11:27
General
- Target f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe
- Size 713KB
- Sample240417-nkpplsdc56
- SHA256 f7984a40a419c7505ed86760237e50455ad8354312b8f2b5fbc6aa99e614b8d6
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
coc88.duckdns.org:8005
-
193.56.29.150:8005
-
83352d75-1e88-4978-9dd5-254659b170b8
-
activate_away_mode
false
-
backup_connection_host
193.56.29.150
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-05-15T16:24:32.018576736Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
8005
-
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
83352d75-1e88-4978-9dd5-254659b170b8
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
coc88.duckdns.org
-
primary_dns_server
8.8.8.8
-
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.
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 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).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RvNKQSmLdF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9A47.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe"{path}"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe"{path}"2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3720 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
f5a9d092edbaa842c01104d2d81bb45b_JaffaCakes118.exe.log
tmp9A47.tmp
memory/3912-14-0x0000000000E50000-0x0000000000E60000-memory.dmp
memory/3912-22-0x0000000000E50000-0x0000000000E60000-memory.dmp
memory/3912-21-0x0000000000E50000-0x0000000000E60000-memory.dmp
memory/3912-20-0x0000000074D70000-0x0000000075321000-memory.dmp
memory/3912-19-0x0000000074D70000-0x0000000075321000-memory.dmp
memory/3912-18-0x0000000000E50000-0x0000000000E60000-memory.dmp
memory/3912-9-0x0000000000400000-0x000000000043A000-memory.dmp
memory/3912-12-0x0000000074D70000-0x0000000075321000-memory.dmp
memory/3912-13-0x0000000074D70000-0x0000000075321000-memory.dmp
memory/4140-4-0x0000000074D70000-0x0000000075321000-memory.dmp
memory/4140-15-0x0000000074D70000-0x0000000075321000-memory.dmp
memory/4140-5-0x0000000000C20000-0x0000000000C30000-memory.dmp
memory/4140-0-0x0000000074D70000-0x0000000075321000-memory.dmp
memory/4140-3-0x0000000000C20000-0x0000000000C30000-memory.dmp
memory/4140-2-0x0000000000C20000-0x0000000000C30000-memory.dmp
memory/4140-1-0x0000000074D70000-0x0000000075321000-memory.dmp