nanocore | 597baa2b442206336c582937353817b978ea97a86be5a864af1c94599dc2ca55

General

Target

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
Size

667KB
MD5

500962576bc4fd9b1237f91c0741ea48
SHA1

4dbcb033fc08f70d39c709b01350aec92b2de97c
SHA256

597baa2b442206336c582937353817b978ea97a86be5a864af1c94599dc2ca55
SHA512

ee2a89503c332c114a8707a1b3ade20ef0d84c7f3c3d7d57e7d9abd08e40c8a54d6741b4fcd7ecb9280c32a5544347716d2c8888319b6bf90851f4dc43709625
SSDEEP

12288:nodKXOQloiDb8jJGmE5hMfHCebIg6Dx0Wk:nvlRb8j4NEHB8T0W

Score

10^/10

nanocore evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.140.53.232:1042

127.0.0.1:1042

Mutex

270c5884-2ace-4cf3-aa33-1d77aaa4b610

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-16T13:20:56.609349336Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1042
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
270c5884-2ace-4cf3-aa33-1d77aaa4b610
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.140.53.232
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
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

2284 powershell.exe

pid	process
2284	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Monitor = "C:\\Program Files (x86)\\UDP Monitor\\udpmon.exe"	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

description	pid	process	target process
PID 2528 set thread context of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

Drops file in Program Files directory 2 IoCs

Processes:

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Monitor\udpmon.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\UDP Monitor\udpmon.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2828 schtasks.exe

pid	process
2828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exepowershell.exe

pid	process
2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2808	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2808	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2808	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
2284	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

pid process

2808 500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

pid	process
2808	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
Token: SeDebugPrivilege	2808	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
Token: SeDebugPrivilege	2284	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

description	pid	process	target process
PID 2528 wrote to memory of 2284	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	powershell.exe
PID 2528 wrote to memory of 2284	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	powershell.exe
PID 2528 wrote to memory of 2284	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	powershell.exe
PID 2528 wrote to memory of 2284	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	powershell.exe
PID 2528 wrote to memory of 2828	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	schtasks.exe
PID 2528 wrote to memory of 2828	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	schtasks.exe
PID 2528 wrote to memory of 2828	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	schtasks.exe
PID 2528 wrote to memory of 2828	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	schtasks.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
PID 2528 wrote to memory of 2808	2528	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe	500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2284

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XvbhYvj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3D9D.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:2828

C:\Users\Admin\AppData\Local\Temp\500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\500962576bc4fd9b1237f91c0741ea48_JaffaCakes118.exe"
2⤵
- 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:2808

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

memory/2528-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/2528-1-0x0000000000E90000-0x0000000000F3C000-memory.dmp

Filesize
688KB

Download
memory/2528-2-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-3-0x0000000000830000-0x0000000000842000-memory.dmp

Filesize
72KB

Download
memory/2528-4-0x00000000747AE000-0x00000000747AF000-memory.dmp

Filesize
4KB

Download
memory/2528-5-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-6-0x0000000004750000-0x00000000047AE000-memory.dmp

Filesize
376KB

Download
memory/2528-27-0x00000000747A0000-0x0000000074E8E000-memory.dmp

Filesize
6.9MB

Download
memory/2808-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2808-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2808-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2808-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2808-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2808-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2808-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2808-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2808-32-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2808-33-0x0000000000620000-0x000000000063E000-memory.dmp

Filesize
120KB

Download
memory/2808-34-0x0000000000590000-0x000000000059A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads