nanocore | 52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac

General

Target
52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac.exe
Size 432KB
Sample200629-2mfq9cnq4e
SHA256 52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac
MD5 8ee4c00412530a8ca0e884f5dfcdea55
SHA1 f367557c654a95e2507e911edfe363fc1f98a9d3
SHA512 aec6d068d59a4da816ccb1de8ffe2960f84f7d674dc542cd80956ef465505698799f244cc28e317a7e0ea32a411b6cdd32552f6f4cad01988a56acd47bd72a7b
MD5 SHA1 SHA512

Score

10^/10

evasion trojan keylogger stealer spyware nanocore persistence

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

nemesis423.ddns.net:54984

Mutex

f2256677-236a-4311-8ee8-4a3958c6ab8d

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-11-29T17:49:56.583202136Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
54984
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
f2256677-236a-4311-8ee8-4a3958c6ab8d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
nemesis423.ddns.net
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

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3916	52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac.exe
Token: SeDebugPrivilege	3860	taskmgr.exe
Token: SeDebugPrivilege	3452	dsffdsf.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3916 wrote to memory of 3860	3916	52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac.exe	67
PID 3916 wrote to memory of 3860	3916	52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac.exe	67
PID 3916 wrote to memory of 3860	3916	52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac.exe	67
PID 3860 wrote to memory of 3452	3860	taskmgr.exe	68
PID 3860 wrote to memory of 3452	3860	taskmgr.exe	68
PID 3860 wrote to memory of 3452	3860	taskmgr.exe	68
PID 3452 wrote to memory of 3692	3452	dsffdsf.exe	69
PID 3452 wrote to memory of 3692	3452	dsffdsf.exe	69
PID 3452 wrote to memory of 3692	3452	dsffdsf.exe	69
PID 3452 wrote to memory of 424	3452	dsffdsf.exe	71
PID 3452 wrote to memory of 424	3452	dsffdsf.exe	71
PID 3452 wrote to memory of 424	3452	dsffdsf.exe	71

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3452	dsffdsf.exe
3452	dsffdsf.exe
3452	dsffdsf.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3452	dsffdsf.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DDP Subsystem\ddpss.exe	dsffdsf.exe
File opened for modification	C:\Program Files (x86)\DDP Subsystem\ddpss.exe	dsffdsf.exe

Executes dropped EXE 2 IoCs

pid	Process
3860	taskmgr.exe
3452	dsffdsf.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	taskmgr.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	dsffdsf.exe

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Subsystem = "C:\\Program Files (x86)\\DDP Subsystem\\ddpss.exe"	dsffdsf.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
3692	schtasks.exe
424	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac.exe
"C:\Users\Admin\AppData\Local\Temp\52a0b32117ded008aba2f96eae8dcd1e49600fa1666ad517d03b81d71f62f8ac.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3916
- C:\Users\Admin\AppData\Local\Temp\taskmgr.exe
  "C:\Users\Admin\AppData\Local\Temp\taskmgr.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - Executes dropped EXE
  - Checks whether UAC is enabled
  PID:3860
- - C:\Users\Admin\AppData\Local\Temp\dsffdsf.exe
    "C:\Users\Admin\AppData\Local\Temp\dsffdsf.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Drops file in Program Files directory
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Adds Run entry to start application
    PID:3452
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3ED9.tmp"
      4⤵
      Creates scheduled task(s)
      PID:3692
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3F57.tmp"
      4⤵
      Creates scheduled task(s)
      PID:424