nanocore | 20eb19ebf2de8995adbc740f2a797cc3119face8760885e7cb9e3a6f3d376d5d

General

Target

kelvinx.exe
Size

765KB
MD5

0e4ecbb7ebdd4c7341658b9e6471a0b7
SHA1

994026038fcbd0514d029c511f20bda6b0b17080
SHA256

20eb19ebf2de8995adbc740f2a797cc3119face8760885e7cb9e3a6f3d376d5d
SHA512

71493fa50a84576dd8de39b6a4a111dab5626073589afdd9f172c4e292f2e1c220f4de5257ddab932a73bc5dd0ccddea89336d36536ab4ec2c264dfffe2ef5ea

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

joetrump@ddns.net:7600

185.140.53.132:7600

Mutex

9f6164b7-e376-4012-b3ba-64bf2d46d5d2

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.132
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-08-21T19:52:47.150790036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
7600
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
9f6164b7-e376-4012-b3ba-64bf2d46d5d2
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
joetrump@ddns.net
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

kelvinx.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\noteped = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\notepod\\noteped.exe\""	kelvinx.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

kelvinx.exe

description ioc process

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

Processes:

kelvinx.exe

description pid process target process

PID 732 set thread context of 3768 732 kelvinx.exe kelvinx.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

kelvinx.exekelvinx.exe

pid process

732 kelvinx.exe
732 kelvinx.exe
3768 kelvinx.exe
3768 kelvinx.exe
3768 kelvinx.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

kelvinx.exe

pid process

3768 kelvinx.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

kelvinx.exekelvinx.exe

description pid process

Token: SeDebugPrivilege 732 kelvinx.exe
Token: SeDebugPrivilege 3768 kelvinx.exe

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

description	pid	process	target process
PID 732 set thread context of 3768	732	kelvinx.exe	kelvinx.exe

pid	process
732	kelvinx.exe
732	kelvinx.exe
3768	kelvinx.exe
3768	kelvinx.exe
3768	kelvinx.exe

pid	process
3768	kelvinx.exe

description	pid	process
Token: SeDebugPrivilege	732	kelvinx.exe
Token: SeDebugPrivilege	3768	kelvinx.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

kelvinx.exe

description	pid	process	target process
PID 732 wrote to memory of 3768	732	kelvinx.exe	kelvinx.exe
PID 732 wrote to memory of 3768	732	kelvinx.exe	kelvinx.exe
PID 732 wrote to memory of 3768	732	kelvinx.exe	kelvinx.exe
PID 732 wrote to memory of 3768	732	kelvinx.exe	kelvinx.exe
PID 732 wrote to memory of 3768	732	kelvinx.exe	kelvinx.exe
PID 732 wrote to memory of 3768	732	kelvinx.exe	kelvinx.exe
PID 732 wrote to memory of 3768	732	kelvinx.exe	kelvinx.exe
PID 732 wrote to memory of 3768	732	kelvinx.exe	kelvinx.exe

C:\Users\Admin\AppData\Local\Temp\kelvinx.exe
"C:\Users\Admin\AppData\Local\Temp\kelvinx.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:732

C:\Users\Admin\AppData\Local\Temp\kelvinx.exe
"C:\Users\Admin\AppData\Local\Temp\kelvinx.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3768

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\kelvinx.exe.log
MD5
9e7845217df4a635ec4341c3d52ed685

SHA1
d65cb39d37392975b038ce503a585adadb805da5

SHA256
d60e596ed3d5c13dc9f1660e6d870d99487e1383891437645c4562a9ecaa8c9b

SHA512
307c3b4d4f2655bdeb177e7b9c981ca27513618903f02c120caa755c9da5a8dd03ebab660b56108a680720a97c1e9596692490aede18cc4bd77b9fc3d8e68aa1

Download Submit
memory/732-4-0x0000000004C90000-0x0000000004C91000-memory.dmp

Filesize
4KB

Download
memory/732-3-0x0000000005190000-0x0000000005191000-memory.dmp

Filesize
4KB

Download
memory/732-0-0x00000000730E0000-0x00000000737CE000-memory.dmp

Filesize
6.9MB

Download
memory/732-5-0x0000000004C40000-0x0000000004C41000-memory.dmp

Filesize
4KB

Download
memory/732-6-0x00000000083C0000-0x000000000841B000-memory.dmp

Filesize
364KB

Download
memory/732-7-0x0000000008440000-0x0000000008456000-memory.dmp

Filesize
88KB

Download
memory/732-1-0x0000000000340000-0x0000000000341000-memory.dmp

Filesize
4KB

Download
memory/3768-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3768-9-0x000000000041E792-mapping.dmp

Download
memory/3768-11-0x00000000730E0000-0x00000000737CE000-memory.dmp

Filesize
6.9MB

Download
memory/3768-16-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/3768-18-0x0000000005A50000-0x0000000005A55000-memory.dmp

Filesize
20KB

Download
memory/3768-19-0x00000000061E0000-0x00000000061F9000-memory.dmp

Filesize
100KB

Download
memory/3768-20-0x0000000006300000-0x0000000006303000-memory.dmp

Filesize
12KB

Download

Analysis

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