Analysis
- max time kernel
90s - max time network
147s - platform
windows10_x64 - resource
win10 - submitted
27/08/2020, 05:45
Static task
static1
Behavioral task
behavioral1
Sample
uK4c13RrZFN6qJo.exe
Resource
win7v200722
0 signatures
0 seconds
General
- Target uK4c13RrZFN6qJo.exe
- Size 522KB
- Sample200827-e3fe9khf42
- SHA256 708e8ea4397b44ad8e1ea8ef53b0697dec1e09b6c454c7bf4654120e04a903f8
- MD5 d400f891031192908e80635dd6ac9cee
- SHA1 65330784185defd5c70579e697565828805332b3
- SHA512 3b13b630e2b2cc4095ff1e667ec2ed080882635adbcb29efb33340750e92c4eef21177cc00ba22f628e8bff3cc51bd06161d2b9953b4978de29b4a61e58dc61b
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
-
nanocore
Version
-
1.2.2.0
C2
-
185.140.53.28:1985
Mutex
-
9eddae35-79d8-4ebb-9d0a-915acde695f9
Attributes
-
activate_away_mode
true
-
backup_connection_host
127.0.0.1
-
backup_dns_server
8.8.4.4
-
buffer_size
65535
-
build_time
2020-06-05T23:41:08.630416436Z
-
bypass_user_account_control
true
- bypass_user_account_control_data
-
clear_access_control
false
-
clear_zone_identifier
false
-
connect_delay
4000
-
connection_port
1985
-
default_group
Cherry Samuel
-
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
9eddae35-79d8-4ebb-9d0a-915acde695f9
-
mutex_timeout
5000
-
prevent_system_sleep
true
-
primary_connection_host
185.140.53.28
-
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
- Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Subsystem = "C:\\Program Files (x86)\\DDP Subsystem\\ddpss.exe" RegSvcs.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2460 set thread context of 3500 2460 uK4c13RrZFN6qJo.exe 70 - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files (x86)\DDP Subsystem\ddpss.exe RegSvcs.exe File opened for modification C:\Program Files (x86)\DDP Subsystem\ddpss.exe RegSvcs.exe - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3844 schtasks.exe - Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 2460 uK4c13RrZFN6qJo.exe 2460 uK4c13RrZFN6qJo.exe 2460 uK4c13RrZFN6qJo.exe 2460 uK4c13RrZFN6qJo.exe 2460 uK4c13RrZFN6qJo.exe 2460 uK4c13RrZFN6qJo.exe 3500 RegSvcs.exe 3500 RegSvcs.exe 3500 RegSvcs.exe 3500 RegSvcs.exe 3500 RegSvcs.exe 3500 RegSvcs.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 3500 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2460 uK4c13RrZFN6qJo.exe Token: SeDebugPrivilege 3500 RegSvcs.exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 2460 wrote to memory of 3844 2460 uK4c13RrZFN6qJo.exe 67 PID 2460 wrote to memory of 3844 2460 uK4c13RrZFN6qJo.exe 67 PID 2460 wrote to memory of 3844 2460 uK4c13RrZFN6qJo.exe 67 PID 2460 wrote to memory of 4008 2460 uK4c13RrZFN6qJo.exe 69 PID 2460 wrote to memory of 4008 2460 uK4c13RrZFN6qJo.exe 69 PID 2460 wrote to memory of 4008 2460 uK4c13RrZFN6qJo.exe 69 PID 2460 wrote to memory of 3500 2460 uK4c13RrZFN6qJo.exe 70 PID 2460 wrote to memory of 3500 2460 uK4c13RrZFN6qJo.exe 70 PID 2460 wrote to memory of 3500 2460 uK4c13RrZFN6qJo.exe 70 PID 2460 wrote to memory of 3500 2460 uK4c13RrZFN6qJo.exe 70 PID 2460 wrote to memory of 3500 2460 uK4c13RrZFN6qJo.exe 70 PID 2460 wrote to memory of 3500 2460 uK4c13RrZFN6qJo.exe 70 PID 2460 wrote to memory of 3500 2460 uK4c13RrZFN6qJo.exe 70 PID 2460 wrote to memory of 3500 2460 uK4c13RrZFN6qJo.exe 70
Processes
-
C:\Users\Admin\AppData\Local\Temp\uK4c13RrZFN6qJo.exe"C:\Users\Admin\AppData\Local\Temp\uK4c13RrZFN6qJo.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2460 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gBxjwKtdrP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6AEA.tmp"2⤵
- Creates scheduled task(s)
PID:3844
-
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"{path}"2⤵PID:4008
-
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"{path}"2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3500
-