nanocore | 5896c651bc097a23e0e8eff8264991d4f8337a3dc528c0a123c9c3eb19c1c080

General

Target

813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe
Size

381KB
MD5

813a527a915620cffa5757eb6bccbb75
SHA1

ce17f93a8dedf7f00524e2552500904f54fbbaf1
SHA256

5896c651bc097a23e0e8eff8264991d4f8337a3dc528c0a123c9c3eb19c1c080
SHA512

adc9cf77b95643e047160df842b6533033c318e93361b5f4b80d887fcb2fe789007f7bf381dd82532bcfe310ac82e258af0a6a8c6f836944b3d3c9a8f2707b7a
SSDEEP

6144:8y7Vetai/7NkM6KArLBx88f5unHcsY60BzPCTC6J5:8yx2L8LNGIunHcsmdPMb

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

bukis228.ddns.net:2888

Mutex

dd75f1a0-78c6-45b9-8931-1e71fe5f970c

Attributes

activate_away_mode
true
backup_connection_host
bukis228.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-01-27T07:09:50.233433736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
2888
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
dd75f1a0-78c6-45b9-8931-1e71fe5f970c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\LAN Service = "C:\\Program Files (x86)\\LAN Service\\lansv.exe"	RegAsm.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe

description pid process target process

PID 2548 set thread context of 2608 2548 813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe RegAsm.exe

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

description	pid	process	target process
PID 2548 set thread context of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\LAN Service\lansv.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\LAN Service\lansv.exe	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exeRegAsm.exe

pid	process
2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe
2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe
2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe
2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe
2608	RegAsm.exe
2608	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2608 RegAsm.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe

pid process

2548 813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2608 RegAsm.exe

pid	process
2608	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2608	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe

description	pid	process	target process
PID 2548 wrote to memory of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe
PID 2548 wrote to memory of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe
PID 2548 wrote to memory of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe
PID 2548 wrote to memory of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe
PID 2548 wrote to memory of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe
PID 2548 wrote to memory of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe
PID 2548 wrote to memory of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe
PID 2548 wrote to memory of 2608	2548	813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\813a527a915620cffa5757eb6bccbb75_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2548

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Users\Admin\AppData\Local\Temp\813a527a915620cffa5757eb6bccbb75_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:2608

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2548-0-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-1-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-2-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-3-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-4-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-5-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-6-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-7-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-8-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-27-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-26-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-25-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-24-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-23-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-22-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-21-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-20-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-19-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-18-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-17-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-16-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-15-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-14-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-13-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-12-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-11-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-10-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2548-9-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2608-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2608-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads