nanocore | 6b3e2ac84de7a3c998848636d915108d98ce24a70cddffc483e1681f0210665a

General

Target

6b3e2ac8.exe
Size

359KB
MD5

8575cb6fc0f2e03e427b847b8bf734a9
SHA1

23f35839198e0cab7822e2fa2ac8e75a3b575291
SHA256

6b3e2ac84de7a3c998848636d915108d98ce24a70cddffc483e1681f0210665a
SHA512

57690b76b4aef045b92f098253a260b31dc339c32acf7829386c5abf9ec17cf9ea031175ebb53a2794d4701a98732b972be672438c007edd867f1d9f1b6db23e

Score

10^/10

nanocore keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.140.53.75:97

Mutex

75237636-ccfc-402a-827d-5ad01371659e

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-24T01:53:34.394429836Z
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
97
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
75237636-ccfc-402a-827d-5ad01371659e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.140.53.75
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

T1060

Modify Registry

T1112

Processes:

RegSvcs.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

6b3e2ac8.exe

description pid process target process

PID 1668 set thread context of 1292 1668 6b3e2ac8.exe RegSvcs.exe

description	pid	process	target process
PID 1668 set thread context of 1292	1668	6b3e2ac8.exe	RegSvcs.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegSvcs.exe

description	ioc	process
File created	C:\Program Files (x86)\SMTP Service\smtpsvc.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\SMTP Service\smtpsvc.exe	RegSvcs.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exe

pid process

1288 schtasks.exe
1048 schtasks.exe
1928 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

6b3e2ac8.exeRegSvcs.exe

pid process

1668 6b3e2ac8.exe
1668 6b3e2ac8.exe
1668 6b3e2ac8.exe
1668 6b3e2ac8.exe
1292 RegSvcs.exe
1292 RegSvcs.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegSvcs.exe

pid process

1292 RegSvcs.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

6b3e2ac8.exeRegSvcs.exe

description pid process

Token: SeDebugPrivilege 1668 6b3e2ac8.exe
Token: SeDebugPrivilege 1292 RegSvcs.exe

pid	process
1288	schtasks.exe
1048	schtasks.exe
1928	schtasks.exe

pid	process
1668	6b3e2ac8.exe
1668	6b3e2ac8.exe
1668	6b3e2ac8.exe
1668	6b3e2ac8.exe
1292	RegSvcs.exe
1292	RegSvcs.exe

pid	process
1292	RegSvcs.exe

description	pid	process
Token: SeDebugPrivilege	1668	6b3e2ac8.exe
Token: SeDebugPrivilege	1292	RegSvcs.exe

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

6b3e2ac8.exeRegSvcs.exe

description	pid	process	target process
PID 1668 wrote to memory of 1288	1668	6b3e2ac8.exe	schtasks.exe
PID 1668 wrote to memory of 1288	1668	6b3e2ac8.exe	schtasks.exe
PID 1668 wrote to memory of 1288	1668	6b3e2ac8.exe	schtasks.exe
PID 1668 wrote to memory of 1288	1668	6b3e2ac8.exe	schtasks.exe
PID 1668 wrote to memory of 1556	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1556	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1556	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1556	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1556	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1556	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1556	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1668 wrote to memory of 1292	1668	6b3e2ac8.exe	RegSvcs.exe
PID 1292 wrote to memory of 1048	1292	RegSvcs.exe	schtasks.exe
PID 1292 wrote to memory of 1048	1292	RegSvcs.exe	schtasks.exe
PID 1292 wrote to memory of 1048	1292	RegSvcs.exe	schtasks.exe
PID 1292 wrote to memory of 1048	1292	RegSvcs.exe	schtasks.exe
PID 1292 wrote to memory of 1928	1292	RegSvcs.exe	schtasks.exe
PID 1292 wrote to memory of 1928	1292	RegSvcs.exe	schtasks.exe
PID 1292 wrote to memory of 1928	1292	RegSvcs.exe	schtasks.exe
PID 1292 wrote to memory of 1928	1292	RegSvcs.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\6b3e2ac8.exe
"C:\Users\Admin\AppData\Local\Temp\6b3e2ac8.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vhHiynSGnoB" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9463.tmp"
2⤵
- Creates scheduled task(s)
PID:1288

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
2⤵
PID:1556

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1292

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9A2D.tmp"
3⤵
- Creates scheduled task(s)
PID:1048

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SMTP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9C9E.tmp"
3⤵
- Creates scheduled task(s)
PID:1928

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9A2D.tmp
MD5
40b11ef601fb28f9b2e69d36857bf2ec

SHA1
b6454020ad2ceed193f4792b77001d0bd741b370

SHA256
c51e12d18cc664425f6711d8ae2507068884c7057092cfa11884100e1e9d49e1

SHA512
e3c5bcc714cbfca4b8058ddcddf231dcefa69c15881ce3f8123e59ed45cfb5da052b56e1945dcf8dc7f800d62f9a4eecb82bca69a66a1530787aeffeb15e2bd5

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9C9E.tmp
MD5
cfae5a3b7d8aa9653fe2512578a0d23a

SHA1
a91a2f8daef114f89038925ada6784646a0a5b12

SHA256
2ab741415f193a2a9134eac48a2310899d18efb5e61c3e81c35140a7efea30fa

SHA512
9dfd7eca6924ae2785ce826a447b6ce6d043c552fbd3b8a804ce6722b07a74900e703dc56cd4443cae9ab9601f21a6068e29771e48497a9ae434096a11814e84

Download Submit
memory/1048-67-0x0000000000000000-mapping.dmp

Download
memory/1288-58-0x0000000000000000-mapping.dmp

Download
memory/1292-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1292-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1292-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1292-60-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1292-63-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1292-64-0x000000000041E792-mapping.dmp

Download
memory/1292-66-0x0000000002040000-0x0000000002041000-memory.dmp

Filesize
4KB

Download
memory/1292-71-0x0000000002041000-0x0000000002042000-memory.dmp

Filesize
4KB

Download
memory/1668-55-0x0000000075C21000-0x0000000075C23000-memory.dmp

Filesize
8KB

Download
memory/1668-57-0x0000000000D21000-0x0000000000D22000-memory.dmp

Filesize
4KB

Download
memory/1668-56-0x0000000000D20000-0x0000000000D21000-memory.dmp

Filesize
4KB

Download
memory/1928-69-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads