nanocore | 139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888

Analysis

max time kernel
120s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 09:55

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General

Target

139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
Size

1.0MB
MD5

6169d78c02ff29c56053034d0bed5c75
SHA1

c013023ce4ad1fcce0126c04d2a77e12740bb2ee
SHA256

139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888
SHA512

18f7ab1ea006ff7a14cb2cf6c812e221426d586bde13367b951b1a115c65aaae5637f93da36d94971c78d8273d9a7cc858d3179b33c6542da160429effc332fe
SSDEEP

24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/3:Ur9gNGKXYD+naGEsBXUv66k8o4yp5w3

Score

10^/10

nanocore defense_evasion discovery keylogger spyware stealer trojan upx

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

testwork.kozow.com:8906

Mutex

bd6fc7b5-d48b-4e23-98f7-784bd3ef305c

Attributes

activate_away_mode
true
backup_connection_host
testwork.kozow.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-02-16T16:47:25.218235636Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8906
default_group
star
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
bd6fc7b5-d48b-4e23-98f7-784bd3ef305c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
testwork.kozow.com
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.
keylogger trojan stealer spyware nanocore
Nanocore family
nanocore

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PresentationHost.url	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

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

AutoIT Executable 12 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2756-19-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-20-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-23-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-24-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-25-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-26-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-27-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-28-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-29-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-30-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-31-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe
behavioral1/memory/2756-32-0x0000000000300000-0x00000000004B1000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31

UPX packed file 13 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2756-0-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-19-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-20-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-23-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-24-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-25-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-26-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-27-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-28-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-29-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-30-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-31-0x0000000000300000-0x00000000004B1000-memory.dmp	upx
behavioral1/memory/2756-32-0x0000000000300000-0x00000000004B1000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2648	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2648	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31
PID 2756 wrote to memory of 2648	2756	139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe	31

C:\Users\Admin\AppData\Local\Temp\139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe
"C:\Users\Admin\AppData\Local\Temp\139d117f4f28ac2f3f0653a1aa5344069369979a42d3b72c04846cd1464a7888.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2648-17-0x0000000073A92000-0x0000000073A94000-memory.dmp

Filesize
8KB

Download
memory/2648-22-0x0000000073A92000-0x0000000073A94000-memory.dmp

Filesize
8KB

Download
memory/2648-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2648-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-21-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/2756-25-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-20-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-0-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-6-0x0000000000120000-0x0000000000121000-memory.dmp

Filesize
4KB

Download
memory/2756-23-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-24-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-19-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-26-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-27-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-28-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-29-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-30-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-31-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download
memory/2756-32-0x0000000000300000-0x00000000004B1000-memory.dmp

Filesize
1.7MB

Download