Analysis
- max time kernel
141s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
17/04/2024, 01:06
General
- Target f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe
- Size 873KB
- Sample240417-bf4azsah21
- SHA256 0e3d407a6703aa6daac111afc3ef6db70db97cc98bff8b33cc96d97d10a78cdf
Malware Config
Extracted
-
nanocore
-
1.2.2.0
-
185.244.30.63:1916
-
127.0.0.1:1916
-
bce1779d-9a41-430e-abc2-737cf5900556
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2021-05-21T21:52:34.187380636Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
true
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1916
-
default_group
Nano
-
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
bce1779d-9a41-430e-abc2-737cf5900556
-
mutex_timeout
5000
-
prevent_system_sleep
false
-
primary_connection_host
185.244.30.63
-
primary_dns_server
8.8.8.8
-
request_elevation
true
-
restart_delay
5000
-
run_delay
0
-
run_on_startup
true
-
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.
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 1 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 7 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- 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\ZvYoLsHRg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6A9C.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe"2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
f4b7c7fd4a506534cd052fde285714cb_JaffaCakes118.exe.log
tmp6A9C.tmp
memory/2220-12-0x0000000006EA0000-0x0000000006F46000-memory.dmp
memory/2220-8-0x0000000005770000-0x00000000057C6000-memory.dmp
memory/2220-4-0x000000000A140000-0x000000000A6E4000-memory.dmp
memory/2220-5-0x0000000005810000-0x00000000058A2000-memory.dmp
memory/2220-6-0x00000000055D0000-0x00000000055E0000-memory.dmp
memory/2220-7-0x00000000055C0000-0x00000000055CA000-memory.dmp
memory/2220-13-0x0000000006BB0000-0x0000000006BEA000-memory.dmp
memory/2220-9-0x0000000006DC0000-0x0000000006DD6000-memory.dmp
memory/2220-10-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/2220-11-0x00000000055D0000-0x00000000055E0000-memory.dmp
memory/2220-3-0x0000000009AF0000-0x0000000009B8C000-memory.dmp
memory/2220-0-0x0000000000B10000-0x0000000000BF0000-memory.dmp
memory/2220-24-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/2220-2-0x0000000005500000-0x00000000055A2000-memory.dmp
memory/2220-14-0x0000000006800000-0x0000000006866000-memory.dmp
memory/2220-1-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/4668-20-0x0000000000400000-0x0000000000438000-memory.dmp
memory/4668-23-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/4668-25-0x0000000005630000-0x0000000005640000-memory.dmp
memory/4668-27-0x0000000005580000-0x000000000558A000-memory.dmp
memory/4668-28-0x00000000060D0000-0x00000000060EE000-memory.dmp
memory/4668-29-0x0000000006200000-0x000000000620A000-memory.dmp
memory/4668-30-0x0000000075330000-0x0000000075AE0000-memory.dmp
memory/4668-31-0x0000000005630000-0x0000000005640000-memory.dmp