nanocore | 6744cb50ec61375fecb780f86bef73a254d0fb45c5b23d0eb9ae375fa19ac4d5

Analysis

max time kernel
147s
max time network
148s
platform
windows10_x64
resource
win10v20201028
submitted
09/11/2020, 19:59

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General

Target
window management.exe
Size 2.2MB
Sample201109-ekjsa6mg2a
SHA256 6744cb50ec61375fecb780f86bef73a254d0fb45c5b23d0eb9ae375fa19ac4d5
MD5 d6a31c3c57b3ba1e77615f52744014e3
SHA1 8858fda60d465e56c4e9733ac66cd372260d0296
SHA512 9cab14ff49333f349fbd4ee076e09b50a4d14785fdfae7280a639df5bc42d1ee41844e66cd725c5857b915774dbe7857da3f89d001ace773c3a33ffb2b498f39
MD5 SHA1 SHA512

Score

10^/10

nanocore agilenet evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

1.tcp.ngrok.io:29703

Mutex

653de30d-5dcf-475d-a0d0-2ba566c6f4e2

Attributes

activate_away_mode
true
backup_connection_host
1.tcp.ngrok.io
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-01T18:54:28.204651736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
true
connect_delay
4000
connection_port
29703
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
653de30d-5dcf-475d-a0d0-2ba566c6f4e2
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
1.tcp.ngrok.io
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.
keylogger trojan stealer spyware nanocore

Executes dropped EXE 2 IoCs

pid	Process
1296	final test2pc.exe
3432	final test2pc.exe

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral2/memory/756-3-0x0000000000ED0000-0x0000000000EDF000-memory.dmp	agile_net

Adds Run key 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\Microsoft\Windows\CurrentVersion\Run\WAN Service = "C:\\Program Files\\WAN Service\\wansv.exe"	final test2pc.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	final test2pc.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 756 set thread context of 2848	756	window management.exe	78
PID 2848 set thread context of 820	2848	window management.exe	79

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\WAN Service\wansv.exe	final test2pc.exe
File opened for modification	C:\Program Files\WAN Service\wansv.exe	final test2pc.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
756	window management.exe
756	window management.exe
756	window management.exe
2848	window management.exe
2848	window management.exe
2848	window management.exe
1296	final test2pc.exe
1296	final test2pc.exe
1296	final test2pc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1296	final test2pc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	756	window management.exe
Token: SeDebugPrivilege	2848	window management.exe
Token: SeDebugPrivilege	820	window management.exe
Token: SeDebugPrivilege	1296	final test2pc.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 756 wrote to memory of 2848	756	window management.exe	78
PID 756 wrote to memory of 2848	756	window management.exe	78
PID 756 wrote to memory of 2848	756	window management.exe	78
PID 756 wrote to memory of 2848	756	window management.exe	78
PID 756 wrote to memory of 2848	756	window management.exe	78
PID 756 wrote to memory of 2848	756	window management.exe	78
PID 756 wrote to memory of 2848	756	window management.exe	78
PID 756 wrote to memory of 2848	756	window management.exe	78
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 2848 wrote to memory of 820	2848	window management.exe	79
PID 820 wrote to memory of 1296	820	window management.exe	80
PID 820 wrote to memory of 1296	820	window management.exe	80
PID 820 wrote to memory of 3432	820	window management.exe	81
PID 820 wrote to memory of 3432	820	window management.exe	81

C:\Users\Admin\AppData\Local\Temp\window management.exe
"C:\Users\Admin\AppData\Local\Temp\window management.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:756
- C:\Users\Admin\AppData\Local\Temp\window management.exe
  "C:\Users\Admin\AppData\Local\Temp\window management.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2848
- - C:\Users\Admin\AppData\Local\Temp\window management.exe
    "C:\Users\Admin\AppData\Local\Temp\window management.exe"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:820
  - - C:\Users\Admin\AppData\Local\Temp\final test2pc.exe
      "C:\Users\Admin\AppData\Local\Temp\final test2pc.exe"
      4⤵
      Executes dropped EXE
      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
      PID:1296
  - - C:\Users\Admin\AppData\Local\Temp\final test2pc.exe
      "C:\Users\Admin\AppData\Local\Temp\final test2pc.exe"
      4⤵
      Executes dropped EXE
      PID:3432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/756-4-0x00000000052F0000-0x00000000052F1000-memory.dmp

Download

memory/756-6-0x0000000004EA0000-0x0000000004EA1000-memory.dmp

Download

memory/756-7-0x00000000050C0000-0x00000000050C2000-memory.dmp

Download

memory/756-8-0x00000000066F0000-0x00000000066F1000-memory.dmp

Download

memory/756-9-0x00000000052D0000-0x00000000052D3000-memory.dmp

Download

memory/756-5-0x00000000027A0000-0x00000000027A2000-memory.dmp

Download

memory/756-0-0x00000000739A0000-0x000000007408E000-memory.dmp

Download

memory/756-3-0x0000000000ED0000-0x0000000000EDF000-memory.dmp

Download

memory/756-1-0x0000000000310000-0x0000000000311000-memory.dmp

Download

memory/820-32-0x0000000005470000-0x0000000005471000-memory.dmp

Download

memory/820-25-0x0000000073A40000-0x000000007412E000-memory.dmp

Download

memory/820-28-0x0000000005150000-0x0000000005151000-memory.dmp

Download

memory/820-31-0x0000000005210000-0x0000000005211000-memory.dmp

Download

memory/820-23-0x0000000000400000-0x00000000004A8000-memory.dmp

Download

memory/1296-39-0x00007FFFD2470000-0x00007FFFD2E10000-memory.dmp

Download

memory/2848-13-0x00000000739B0000-0x000000007409E000-memory.dmp

Download

memory/2848-10-0x0000000000400000-0x000000000053E000-memory.dmp

Download

memory/3432-38-0x00007FFFD2470000-0x00007FFFD2E10000-memory.dmp

Download