nanocore | a3d5a45ceef48e51a57074aa2cb2bc39414606a2e7efc061fe2ab6a3921a4262

General

Target

62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe
Size

646KB
MD5

62ef9447d7dedcd62c5879e7f57eea00
SHA1

5d1bbb3ea18307eee5de032fd08fb631f62111b6
SHA256

a3d5a45ceef48e51a57074aa2cb2bc39414606a2e7efc061fe2ab6a3921a4262
SHA512

56cc4578fabc070defbbb9d7d042dd41dc4bfeab441d2c36052c3f7fd0f9fb253d281b78441423357403546183bbd6c31b90abda50c356c90e9041a0c4ce8b5a
SSDEEP

12288:Eu/osQMgL96w0SVvV6fcaubLH31O2lxvdJGtKc/5kkfi1MgxdsKfr3e3g8C1DuRk:Eur9gkEPGcHHX1OSr/cnqGodhz3cp4ok

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan upx

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

213.184.126.143:1993

Mutex

023e0719-23ff-48a0-a14a-16f92fea10e1

Attributes

activate_away_mode
true
backup_connection_host
213.184.126.143
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-01-21T14:43:07.916268436Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1993
default_group
isreal
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
023e0719-23ff-48a0-a14a-16f92fea10e1
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
213.184.126.143
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

Drops startup file 1 IoCs

Processes:

62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PasswordOnWakeSettingFlyout.url	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe

UPX packed file 11 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/1188-0-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-1-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-2-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-3-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-4-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-5-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-6-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-7-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-8-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-18-0x0000000000410000-0x0000000000558000-memory.dmp	upx
behavioral2/memory/1188-29-0x0000000000410000-0x0000000000558000-memory.dmp	upx

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\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.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

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

AutoIT Executable 10 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/1188-1-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-2-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-3-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-4-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-5-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-6-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-7-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-8-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-18-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe
behavioral2/memory/1188-29-0x0000000000410000-0x0000000000558000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe

description pid process target process

PID 1188 set thread context of 376 1188 62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe RegAsm.exe

description	pid	process	target process
PID 1188 set thread context of 376	1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	RegAsm.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exe

pid process

4984 schtasks.exe
2328 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegAsm.exe

pid process

376 RegAsm.exe
376 RegAsm.exe
376 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

376 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 376 RegAsm.exe

pid	process
4984	schtasks.exe
2328	schtasks.exe

pid	process
376	RegAsm.exe
376	RegAsm.exe
376	RegAsm.exe

pid	process
376	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	376	RegAsm.exe

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe

pid	process
1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe
1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe
1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe
1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe

Suspicious use of SendNotifyMessage 4 IoCs

Processes:

62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe

pid	process
1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe
1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe
1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe
1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exeRegAsm.exe

description	pid	process	target process
PID 1188 wrote to memory of 376	1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe	RegAsm.exe
PID 1188 wrote to memory of 376	1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe	RegAsm.exe
PID 1188 wrote to memory of 376	1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe	RegAsm.exe
PID 1188 wrote to memory of 376	1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe	RegAsm.exe
PID 1188 wrote to memory of 376	1188	62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe	RegAsm.exe
PID 376 wrote to memory of 4984	376	RegAsm.exe	schtasks.exe
PID 376 wrote to memory of 4984	376	RegAsm.exe	schtasks.exe
PID 376 wrote to memory of 4984	376	RegAsm.exe	schtasks.exe
PID 376 wrote to memory of 2328	376	RegAsm.exe	schtasks.exe
PID 376 wrote to memory of 2328	376	RegAsm.exe	schtasks.exe
PID 376 wrote to memory of 2328	376	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\62ef9447d7dedcd62c5879e7f57eea00_NeikiAnalytics.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1188

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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
- Suspicious use of WriteProcessMemory
PID:376

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp57BB.tmp"
3⤵
- Creates scheduled task(s)
PID:4984

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5FDA.tmp"
3⤵
- Creates scheduled task(s)
PID:2328

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4140 --field-trial-handle=2692,i,8678872182442199182,12502579059484928042,262144 --variations-seed-version /prefetch:8
1⤵
PID:4400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp57BB.tmp
Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp5FDA.tmp
Filesize
1KB

MD5
0339b45ef206f4becc88be0d65e24b9e

SHA1
6503a1851f4ccd8c80a31f96bd7ae40d962c9fad

SHA256
3d568a47a8944a47f4aed6982755ac7ff7dda469cc1c81c213ecaa5d89de1f83

SHA512
c98f4513db34d50510dd986e0d812545c442bd5bef26932032b165759627fab4e00c95fe907ab3416a8a1042bfa77aa516c479f1ff7d1ec2f21ae66df8f72551

Download Submit
memory/376-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/376-15-0x0000000073F52000-0x0000000073F53000-memory.dmp

Filesize
4KB

Download
memory/376-32-0x0000000073F50000-0x0000000074501000-memory.dmp

Filesize
5.7MB

Download
memory/376-31-0x0000000073F50000-0x0000000074501000-memory.dmp

Filesize
5.7MB

Download
memory/376-30-0x0000000073F52000-0x0000000073F53000-memory.dmp

Filesize
4KB

Download
memory/376-17-0x0000000073F50000-0x0000000074501000-memory.dmp

Filesize
5.7MB

Download
memory/376-16-0x0000000073F50000-0x0000000074501000-memory.dmp

Filesize
5.7MB

Download
memory/1188-7-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-0-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-9-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

Filesize
4KB

Download
memory/1188-8-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-3-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-18-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-2-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-1-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-29-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-6-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-5-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download
memory/1188-4-0x0000000000410000-0x0000000000558000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads