nanocore | fc15ab19130fccdae7dee477e0ae6d711fe3492cbac1b7e5d472eae4902f9516

General

Target

PROOF_OF_PAYMENT.exe
Size

24KB
MD5

7f99d249840dc2c5009b4771f887336e
SHA1

0a4de6946dca7444da62b7794bcb59e553108f0c
SHA256

fc15ab19130fccdae7dee477e0ae6d711fe3492cbac1b7e5d472eae4902f9516
SHA512

2dc950577ee4fa9b999d044cbb93aa365b13eb5a012633e7ec61410536790080c6c2f3be9f684ac3f11694b51d40d4732aa9975d91fd0c2b68c6e9d66a204237
SSDEEP

384:JwkCN7n8OIo3A12++XCCvcXEMA+7QEh2Fobm22:5CNz8OBnMA8R2

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

amechi.duckdns.org:4190

Mutex

7766992d-5166-4919-9d26-1d114e11093c

Attributes

activate_away_mode
true
backup_connection_host
amechi.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-06-17T10:10:35.253943636Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4190
default_group
NEW TRY FOR SUCCESS
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
7766992d-5166-4919-9d26-1d114e11093c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
amechi.duckdns.org
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
Executes dropped EXE 1 IoCs

Processes:

Bjlavuqqxsfvuyykucvpptdbin.exe

pid process

268 Bjlavuqqxsfvuyykucvpptdbin.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Bjlavuqqxsfvuyykucvpptdbin.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\Geo\Nation	Bjlavuqqxsfvuyykucvpptdbin.exe

Loads dropped DLL 3 IoCs

Processes:

PROOF_OF_PAYMENT.execmmon32.exe

pid process

544 PROOF_OF_PAYMENT.exe
544 PROOF_OF_PAYMENT.exe
1284 cmmon32.exe

pid	process
544	PROOF_OF_PAYMENT.exe
544	PROOF_OF_PAYMENT.exe
1284	cmmon32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

PROOF_OF_PAYMENT.exePROOF_OF_PAYMENT.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\game = "\"C:\\Users\\Admin\\AppData\\Roaming\\game.exe\""	PROOF_OF_PAYMENT.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	PROOF_OF_PAYMENT.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

PROOF_OF_PAYMENT.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA PROOF_OF_PAYMENT.exe

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

Suspicious use of SetThreadContext 4 IoCs

Processes:

Bjlavuqqxsfvuyykucvpptdbin.exePROOF_OF_PAYMENT.execmmon32.exe

description	pid	process	target process
PID 268 set thread context of 1352	268	Bjlavuqqxsfvuyykucvpptdbin.exe	Explorer.EXE
PID 544 set thread context of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 268 set thread context of 1352	268	Bjlavuqqxsfvuyykucvpptdbin.exe	Explorer.EXE
PID 1284 set thread context of 1352	1284	cmmon32.exe	Explorer.EXE

Drops file in Program Files directory 2 IoCs

Processes:

PROOF_OF_PAYMENT.exe

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

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

powershell.exeBjlavuqqxsfvuyykucvpptdbin.exePROOF_OF_PAYMENT.execmmon32.exe

pid	process
616	powershell.exe
268	Bjlavuqqxsfvuyykucvpptdbin.exe
268	Bjlavuqqxsfvuyykucvpptdbin.exe
268	Bjlavuqqxsfvuyykucvpptdbin.exe
268	Bjlavuqqxsfvuyykucvpptdbin.exe
760	PROOF_OF_PAYMENT.exe
760	PROOF_OF_PAYMENT.exe
268	Bjlavuqqxsfvuyykucvpptdbin.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

PROOF_OF_PAYMENT.exe

pid process

760 PROOF_OF_PAYMENT.exe

pid	process
760	PROOF_OF_PAYMENT.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

Bjlavuqqxsfvuyykucvpptdbin.execmmon32.exe

pid	process
268	Bjlavuqqxsfvuyykucvpptdbin.exe
268	Bjlavuqqxsfvuyykucvpptdbin.exe
268	Bjlavuqqxsfvuyykucvpptdbin.exe
268	Bjlavuqqxsfvuyykucvpptdbin.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe
1284	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

PROOF_OF_PAYMENT.exepowershell.exeBjlavuqqxsfvuyykucvpptdbin.exePROOF_OF_PAYMENT.execmmon32.exe

description	pid	process
Token: SeDebugPrivilege	544	PROOF_OF_PAYMENT.exe
Token: SeDebugPrivilege	616	powershell.exe
Token: SeDebugPrivilege	268	Bjlavuqqxsfvuyykucvpptdbin.exe
Token: SeDebugPrivilege	760	PROOF_OF_PAYMENT.exe
Token: SeDebugPrivilege	1284	cmmon32.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

PROOF_OF_PAYMENT.exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 544 wrote to memory of 616	544	PROOF_OF_PAYMENT.exe	powershell.exe
PID 544 wrote to memory of 616	544	PROOF_OF_PAYMENT.exe	powershell.exe
PID 544 wrote to memory of 616	544	PROOF_OF_PAYMENT.exe	powershell.exe
PID 544 wrote to memory of 616	544	PROOF_OF_PAYMENT.exe	powershell.exe
PID 544 wrote to memory of 268	544	PROOF_OF_PAYMENT.exe	Bjlavuqqxsfvuyykucvpptdbin.exe
PID 544 wrote to memory of 268	544	PROOF_OF_PAYMENT.exe	Bjlavuqqxsfvuyykucvpptdbin.exe
PID 544 wrote to memory of 268	544	PROOF_OF_PAYMENT.exe	Bjlavuqqxsfvuyykucvpptdbin.exe
PID 544 wrote to memory of 268	544	PROOF_OF_PAYMENT.exe	Bjlavuqqxsfvuyykucvpptdbin.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 544 wrote to memory of 760	544	PROOF_OF_PAYMENT.exe	PROOF_OF_PAYMENT.exe
PID 1352 wrote to memory of 1284	1352	Explorer.EXE	cmmon32.exe
PID 1352 wrote to memory of 1284	1352	Explorer.EXE	cmmon32.exe
PID 1352 wrote to memory of 1284	1352	Explorer.EXE	cmmon32.exe
PID 1352 wrote to memory of 1284	1352	Explorer.EXE	cmmon32.exe
PID 1284 wrote to memory of 1160	1284	cmmon32.exe	Firefox.exe
PID 1284 wrote to memory of 1160	1284	cmmon32.exe	Firefox.exe
PID 1284 wrote to memory of 1160	1284	cmmon32.exe	Firefox.exe
PID 1284 wrote to memory of 1160	1284	cmmon32.exe	Firefox.exe
PID 1284 wrote to memory of 1160	1284	cmmon32.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1352

C:\Users\Admin\AppData\Local\Temp\PROOF_OF_PAYMENT.exe
"C:\Users\Admin\AppData\Local\Temp\PROOF_OF_PAYMENT.exe"
2⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:544

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAxAA==
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:616

C:\Users\Admin\AppData\Local\Temp\Bjlavuqqxsfvuyykucvpptdbin.exe
"C:\Users\Admin\AppData\Local\Temp\Bjlavuqqxsfvuyykucvpptdbin.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:268

C:\Users\Admin\AppData\Local\Temp\PROOF_OF_PAYMENT.exe
C:\Users\Admin\AppData\Local\Temp\PROOF_OF_PAYMENT.exe
3⤵
- 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:760

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1284

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1160

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

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Bjlavuqqxsfvuyykucvpptdbin.exe
Filesize
185KB

MD5
81a6c3beb08a0f5029528dbbaa991dd7

SHA1
cca8dd79b8a4710baa1726a476227b3e25ecf056

SHA256
096a5d8dd996c380d7fc28c0350836b9c3cdf2651099869eb64b430145af939d

SHA512
1332f16ef45280e74976a29766b468c7f0679744bbe6382b25b85ce60c5d4e0e3af22f537307be62f2ba0276519ad5b90e42e32c41d34287009ca3cbbcf1a366

Download Submit
C:\Users\Admin\AppData\Local\Temp\Bjlavuqqxsfvuyykucvpptdbin.exe
Filesize
185KB

MD5
81a6c3beb08a0f5029528dbbaa991dd7

SHA1
cca8dd79b8a4710baa1726a476227b3e25ecf056

SHA256
096a5d8dd996c380d7fc28c0350836b9c3cdf2651099869eb64b430145af939d

SHA512
1332f16ef45280e74976a29766b468c7f0679744bbe6382b25b85ce60c5d4e0e3af22f537307be62f2ba0276519ad5b90e42e32c41d34287009ca3cbbcf1a366

Download Submit
\Users\Admin\AppData\Local\Temp\Bjlavuqqxsfvuyykucvpptdbin.exe
Filesize
185KB

MD5
81a6c3beb08a0f5029528dbbaa991dd7

SHA1
cca8dd79b8a4710baa1726a476227b3e25ecf056

SHA256
096a5d8dd996c380d7fc28c0350836b9c3cdf2651099869eb64b430145af939d

SHA512
1332f16ef45280e74976a29766b468c7f0679744bbe6382b25b85ce60c5d4e0e3af22f537307be62f2ba0276519ad5b90e42e32c41d34287009ca3cbbcf1a366

Download Submit
\Users\Admin\AppData\Local\Temp\Bjlavuqqxsfvuyykucvpptdbin.exe
Filesize
185KB

MD5
81a6c3beb08a0f5029528dbbaa991dd7

SHA1
cca8dd79b8a4710baa1726a476227b3e25ecf056

SHA256
096a5d8dd996c380d7fc28c0350836b9c3cdf2651099869eb64b430145af939d

SHA512
1332f16ef45280e74976a29766b468c7f0679744bbe6382b25b85ce60c5d4e0e3af22f537307be62f2ba0276519ad5b90e42e32c41d34287009ca3cbbcf1a366

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
1.1MB

MD5
f55e5766477de5997da50f12c9c74c91

SHA1
4dc98900a887be95411f07b9e597c57bdc7dbab3

SHA256
90be88984ee60864256378c952d44b13d55ac032ab6a7b8c698885176bcece69

SHA512
983417a297e68b58fbd1c07fed7a1697d249110a2c10644b2dc96e3facedd3fbfbcac6a7809631ffd62894f02cadd4d3e62022b9e5e026e5bf434f1eb1878f05

Download Submit
memory/268-64-0x0000000000000000-mapping.dmp

Download
memory/268-66-0x0000000000AE0000-0x0000000000B0F000-memory.dmp

Filesize
188KB

Download
memory/268-89-0x0000000000AE0000-0x0000000000B0F000-memory.dmp

Filesize
188KB

Download
memory/268-86-0x0000000000150000-0x0000000000160000-memory.dmp

Filesize
64KB

Download
memory/268-81-0x0000000000110000-0x0000000000120000-memory.dmp

Filesize
64KB

Download
memory/268-80-0x0000000000B10000-0x0000000000E13000-memory.dmp

Filesize
3.0MB

Download
memory/544-54-0x0000000001380000-0x000000000138C000-memory.dmp

Filesize
48KB

Download
memory/544-56-0x00000000064B0000-0x0000000006720000-memory.dmp

Filesize
2.4MB

Download
memory/544-55-0x0000000075A91000-0x0000000075A93000-memory.dmp

Filesize
8KB

Download
memory/616-61-0x000000006E220000-0x000000006E7CB000-memory.dmp

Filesize
5.7MB

Download
memory/616-60-0x000000006E220000-0x000000006E7CB000-memory.dmp

Filesize
5.7MB

Download
memory/616-59-0x000000006E220000-0x000000006E7CB000-memory.dmp

Filesize
5.7MB

Download
memory/616-57-0x0000000000000000-mapping.dmp

Download
memory/760-76-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/760-70-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/760-74-0x000000000041E792-mapping.dmp

Download
memory/760-73-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/760-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/760-83-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/760-84-0x0000000000830000-0x000000000084E000-memory.dmp

Filesize
120KB

Download
memory/760-85-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/760-71-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/760-68-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/760-78-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1284-88-0x0000000000000000-mapping.dmp

Download
memory/1284-91-0x0000000000660000-0x000000000066D000-memory.dmp

Filesize
52KB

Download
memory/1284-92-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1284-93-0x0000000001FF0000-0x00000000022F3000-memory.dmp

Filesize
3.0MB

Download
memory/1284-94-0x0000000000700000-0x000000000078F000-memory.dmp

Filesize
572KB

Download
memory/1284-96-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1352-87-0x0000000006820000-0x0000000006996000-memory.dmp

Filesize
1.5MB

Download
memory/1352-95-0x00000000062A0000-0x00000000063BE000-memory.dmp

Filesize
1.1MB

Download
memory/1352-97-0x00000000062A0000-0x00000000063BE000-memory.dmp

Filesize
1.1MB

Download
memory/1352-82-0x0000000004D60000-0x0000000004E7C000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads