nanocore | a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e

General

Target

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
Size

906KB
MD5

98207b03cb218b008c1fa9fa47867490
SHA1

3779274912bd5f967ef329b7c26aa2a22e0b5d87
SHA256

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e
SHA512

feca3df0b7c5c25167cc38a9aea2fff88961f1aed034a9102dfcdeea24891f2354587bae8b0e88093f83ee652592d11ec2d9c9f1b8987573f09d0cba40284590
SSDEEP

12288:YhTRA7rkUGV1PyVrB33l4epM3dX5xKeY3Zo7hypcXHADqjJ5nX:YAPGnPmWeEOeKo7sp+vjrX

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

brewsterchristophe.ddns.net:5899

194,147,5,75:5899

Mutex

b8aebc29-8c64-444f-99e6-dc4122e9bbfc

Attributes

activate_away_mode
true
backup_connection_host
194,147,5,75
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-29T03:26:40.572298236Z
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
5899
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
b8aebc29-8c64-444f-99e6-dc4122e9bbfc
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brewsterchristophe.ddns.net
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:

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

description	pid	process	target process
PID 2024 set thread context of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

Drops file in Program Files directory 2 IoCs

Processes:

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

description	ioc	process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.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

1540 schtasks.exe
664 schtasks.exe
1824 schtasks.exe

pid	process
1540	schtasks.exe
664	schtasks.exe
1824	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

pid	process
1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

pid process

1456 a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

description pid process

Token: SeDebugPrivilege 1456 a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

description	pid	process
Token: SeDebugPrivilege	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exea509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe

description	pid	process	target process
PID 2024 wrote to memory of 1540	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 2024 wrote to memory of 1540	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 2024 wrote to memory of 1540	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 2024 wrote to memory of 1540	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 2024 wrote to memory of 1456	2024	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
PID 1456 wrote to memory of 664	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 1456 wrote to memory of 664	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 1456 wrote to memory of 664	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 1456 wrote to memory of 664	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 1456 wrote to memory of 1824	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 1456 wrote to memory of 1824	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 1456 wrote to memory of 1824	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe
PID 1456 wrote to memory of 1824	1456	a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
"C:\Users\Admin\AppData\Local\Temp\a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wnbXfAlAOlj" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D90.tmp"
2⤵
- Creates scheduled task(s)
PID:1540

C:\Users\Admin\AppData\Local\Temp\a509158e1105757bec0ff3f7dd621360d0acb1f17271841c19dab776004cd17e.exe
"{path}"
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:1456

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3C27.tmp"
3⤵
- Creates scheduled task(s)
PID:664

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3D22.tmp"
3⤵
- Creates scheduled task(s)
PID:1824

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1D90.tmp

Filesize
1KB

MD5
10a3a9e5740e5bd3b06c6d7dadf80d31

SHA1
68ed05b4f0dc7a19f33ba73d63de0a48b10d61f4

SHA256
f929530e6347ab134c3a2f763a1b770aaa9f0f172766f0aeeb3af61bdf5972e1

SHA512
97aa3b20da4d6d7a30a382951abdcabe68e1ac2b41e5b31b004e1364a719275e71007700086f8d5cb826f867d601fbab21456d0c75b69b81eb469f314d75716b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3C27.tmp

Filesize
1KB

MD5
f1054a5f20b335c532a1f92035feaba8

SHA1
6a7dccca41a37a96442f2c7092fc9f526dde6616

SHA256
776e5e0104457d9720017debbf46d16fc3042c1f7c6787e4b132c6865f1c9356

SHA512
2c954119efad5f87fca07b88a3b2750c308ae8967d78b8648ac31f7343f660ec3c1db8e437f91a1da3c23b52195d75f7fbbcaa2b123bfe85e66206ccda940721

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3D22.tmp

Filesize
1KB

MD5
0a24db62cb5b84309c4803346caaa25d

SHA1
67660778f61bb44168c33ed3fe56ed86cf9583e8

SHA256
38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

SHA512
d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

Download Submit
memory/664-74-0x0000000000000000-mapping.dmp

Download
memory/1456-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1456-78-0x00000000004D0000-0x00000000004DA000-memory.dmp

Filesize
40KB

Download
memory/1456-92-0x0000000004D20000-0x0000000004D34000-memory.dmp

Filesize
80KB

Download
memory/1456-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1456-91-0x0000000004D70000-0x0000000004D9E000-memory.dmp

Filesize
184KB

Download
memory/1456-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1456-65-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1456-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1456-68-0x000000000041E792-mapping.dmp

Download
memory/1456-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1456-72-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1456-90-0x00000000010E0000-0x00000000010EE000-memory.dmp

Filesize
56KB

Download
memory/1456-89-0x0000000000E40000-0x0000000000E54000-memory.dmp

Filesize
80KB

Download
memory/1456-88-0x0000000000E30000-0x0000000000E40000-memory.dmp

Filesize
64KB

Download
memory/1456-87-0x0000000000E20000-0x0000000000E34000-memory.dmp

Filesize
80KB

Download
memory/1456-86-0x0000000000CD0000-0x0000000000CDC000-memory.dmp

Filesize
48KB

Download
memory/1456-79-0x0000000000610000-0x000000000062E000-memory.dmp

Filesize
120KB

Download
memory/1456-80-0x00000000004E0000-0x00000000004EA000-memory.dmp

Filesize
40KB

Download
memory/1456-81-0x0000000000640000-0x0000000000652000-memory.dmp

Filesize
72KB

Download
memory/1456-82-0x0000000000BB0000-0x0000000000BCA000-memory.dmp

Filesize
104KB

Download
memory/1456-83-0x0000000000C10000-0x0000000000C1E000-memory.dmp

Filesize
56KB

Download
memory/1456-84-0x0000000000C30000-0x0000000000C42000-memory.dmp

Filesize
72KB

Download
memory/1456-85-0x0000000000C80000-0x0000000000C8E000-memory.dmp

Filesize
56KB

Download
memory/1540-59-0x0000000000000000-mapping.dmp

Download
memory/1824-76-0x0000000000000000-mapping.dmp

Download
memory/2024-55-0x0000000075F81000-0x0000000075F83000-memory.dmp

Filesize
8KB

Download
memory/2024-56-0x0000000000230000-0x0000000000250000-memory.dmp

Filesize
128KB

Download
memory/2024-57-0x0000000005350000-0x00000000053DC000-memory.dmp

Filesize
560KB

Download
memory/2024-54-0x0000000001170000-0x0000000001258000-memory.dmp

Filesize
928KB

Download
memory/2024-58-0x0000000000C70000-0x0000000000CAC000-memory.dmp

Filesize
240KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads