nanocore | 24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622

General

Target

Re Remittance Advice.exe
Size

566KB
MD5

0f69b38426bbbcb5528aaef9d7d6e054
SHA1

bbc0cec1892e41a0d854b33bf8d8f156367caf6b
SHA256

24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622
SHA512

21bc78a63dc7aa27500261d43747ccf5589a95ebf9a866f7e68bdc8ec89c573a9352e1af438cb8360a29ceee63fb6788841f0f3399159e1f0069bd17abf59df8
SSDEEP

12288:XO8l02b1zzUFFiRU8WnSSW/FnILBTqZfs+StQPI:NlfzzUFAKLSSW+LBTq3A

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

brightnano1.ddns.net:1989

171.22.30.97:1989

Mutex

fba1bbc6-2cc8-4c94-b6c0-dda5a12fd7fe

Attributes

activate_away_mode
true
backup_connection_host
171.22.30.97
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-06-10T14:34:05.030247036Z
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
1989
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
fba1bbc6-2cc8-4c94-b6c0-dda5a12fd7fe
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brightnano1.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
Executes dropped EXE 1 IoCs

Processes:

Bin.exe

pid process

372 Bin.exe

pid	process
372	Bin.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exeRegAsm.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Bin = "C:\\Users\\Admin\\Desktop\\Bin.exe"	reg.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Manager = "C:\\Program Files (x86)\\DDP Manager\\ddpmgr.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

Bin.exe

description pid process target process

PID 372 set thread context of 4324 372 Bin.exe RegAsm.exe

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

description	pid	process	target process
PID 372 set thread context of 4324	372	Bin.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File created	C:\Program Files (x86)\DDP Manager\ddpmgr.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\DDP Manager\ddpmgr.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
T1053

Processes:

schtasks.exeschtasks.exe

pid process

3940 schtasks.exe
4308 schtasks.exe
Runs ping.exe 1 TTPs 3 IoCs

Remote System Discovery
T1018

Processes:

PING.EXEPING.EXEPING.EXE

pid process

4132 PING.EXE
4872 PING.EXE
3144 PING.EXE

pid	process
3940	schtasks.exe
4308	schtasks.exe

pid	process
4132	PING.EXE
4872	PING.EXE
3144	PING.EXE

Suspicious behavior: EnumeratesProcesses 33 IoCs

Processes:

Re Remittance Advice.exeBin.exeRegAsm.exe

pid	process
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
4564	Re Remittance Advice.exe
372	Bin.exe
372	Bin.exe
4324	RegAsm.exe
4324	RegAsm.exe
4324	RegAsm.exe
4324	RegAsm.exe
4324	RegAsm.exe
4324	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

4324 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Re Remittance Advice.exeBin.exeRegAsm.exe

description pid process

Token: SeDebugPrivilege 4564 Re Remittance Advice.exe
Token: SeDebugPrivilege 372 Bin.exe
Token: SeDebugPrivilege 4324 RegAsm.exe

pid	process
4324	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4564	Re Remittance Advice.exe
Token: SeDebugPrivilege	372	Bin.exe
Token: SeDebugPrivilege	4324	RegAsm.exe

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

Re Remittance Advice.execmd.execmd.exeBin.exeRegAsm.exe

description	pid	process	target process
PID 4564 wrote to memory of 4788	4564	Re Remittance Advice.exe	cmd.exe
PID 4564 wrote to memory of 4788	4564	Re Remittance Advice.exe	cmd.exe
PID 4564 wrote to memory of 4788	4564	Re Remittance Advice.exe	cmd.exe
PID 4788 wrote to memory of 3144	4788	cmd.exe	PING.EXE
PID 4788 wrote to memory of 3144	4788	cmd.exe	PING.EXE
PID 4788 wrote to memory of 3144	4788	cmd.exe	PING.EXE
PID 4564 wrote to memory of 3092	4564	Re Remittance Advice.exe	cmd.exe
PID 4564 wrote to memory of 3092	4564	Re Remittance Advice.exe	cmd.exe
PID 4564 wrote to memory of 3092	4564	Re Remittance Advice.exe	cmd.exe
PID 3092 wrote to memory of 4132	3092	cmd.exe	PING.EXE
PID 3092 wrote to memory of 4132	3092	cmd.exe	PING.EXE
PID 3092 wrote to memory of 4132	3092	cmd.exe	PING.EXE
PID 4788 wrote to memory of 4032	4788	cmd.exe	reg.exe
PID 4788 wrote to memory of 4032	4788	cmd.exe	reg.exe
PID 4788 wrote to memory of 4032	4788	cmd.exe	reg.exe
PID 3092 wrote to memory of 4872	3092	cmd.exe	PING.EXE
PID 3092 wrote to memory of 4872	3092	cmd.exe	PING.EXE
PID 3092 wrote to memory of 4872	3092	cmd.exe	PING.EXE
PID 3092 wrote to memory of 372	3092	cmd.exe	Bin.exe
PID 3092 wrote to memory of 372	3092	cmd.exe	Bin.exe
PID 3092 wrote to memory of 372	3092	cmd.exe	Bin.exe
PID 372 wrote to memory of 4324	372	Bin.exe	RegAsm.exe
PID 372 wrote to memory of 4324	372	Bin.exe	RegAsm.exe
PID 372 wrote to memory of 4324	372	Bin.exe	RegAsm.exe
PID 372 wrote to memory of 4324	372	Bin.exe	RegAsm.exe
PID 372 wrote to memory of 4324	372	Bin.exe	RegAsm.exe
PID 372 wrote to memory of 4324	372	Bin.exe	RegAsm.exe
PID 372 wrote to memory of 4324	372	Bin.exe	RegAsm.exe
PID 372 wrote to memory of 4324	372	Bin.exe	RegAsm.exe
PID 4324 wrote to memory of 3940	4324	RegAsm.exe	schtasks.exe
PID 4324 wrote to memory of 3940	4324	RegAsm.exe	schtasks.exe
PID 4324 wrote to memory of 3940	4324	RegAsm.exe	schtasks.exe
PID 4324 wrote to memory of 4308	4324	RegAsm.exe	schtasks.exe
PID 4324 wrote to memory of 4308	4324	RegAsm.exe	schtasks.exe
PID 4324 wrote to memory of 4308	4324	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Re Remittance Advice.exe
"C:\Users\Admin\AppData\Local\Temp\Re Remittance Advice.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4564

C:\Windows\SysWOW64\cmd.exe
"cmd" /c ping 127.0.0.1 -n 11 > nul && REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Bin" /t REG_SZ /d "C:\Users\Admin\Desktop\Bin.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:4788

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 11
3⤵
- Runs ping.exe
PID:3144

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "Bin" /t REG_SZ /d "C:\Users\Admin\Desktop\Bin.exe"
3⤵
- Adds Run key to start application
PID:4032

C:\Windows\SysWOW64\cmd.exe
"cmd" /c ping 127.0.0.1 -n 21 > nul && copy "C:\Users\Admin\AppData\Local\Temp\Re Remittance Advice.exe" "C:\Users\Admin\Desktop\Bin.exe" && ping 127.0.0.1 -n 21 > nul && "C:\Users\Admin\Desktop\Bin.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3092

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 21
3⤵
- Runs ping.exe
PID:4132

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 21
3⤵
- Runs ping.exe
PID:4872

C:\Users\Admin\Desktop\Bin.exe
"C:\Users\Admin\Desktop\Bin.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:372

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
4⤵
- 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:4324

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DDP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA3C.tmp"
5⤵
- Creates scheduled task(s)
PID:3940

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DDP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAD9.tmp"
5⤵
- Creates scheduled task(s)
PID:4308

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

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA3C.tmp
Filesize
1KB

MD5
48ef7fa9033389ad7929d7a6b9d10298

SHA1
9db6cb7325c8bdf66a15f7b5f34703709a45aeb6

SHA256
0c1b5f67eeb276d1d4205b138ce32bc6149924e02281a2db8e4623a700e88f15

SHA512
ac8bd104ecbacc9bccce9e087f67e5b18072d59367ccd31d4e66132b6baaea520cba5b9b59464483d86abf74826b382c402f12e9a586c99bda8c78a0de33944e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpAD9.tmp
Filesize
1KB

MD5
677848190631e19222304d1982aa2e1b

SHA1
bed6cf97d3458e4ea59ff9823375d915a9b3d682

SHA256
8bcf16c788d228932fa707bb4250c05151e099bdf7040adc717e53680601be3d

SHA512
f5d41e150011bc63f4c95799e21fe91ffaa25eb05f4ca46ea89f3a3ca5325413ba4e0b7b5d69c0bc189955f3308c4928016a7cc1d6f7c2352639106952e92b1e

Download Submit
C:\Users\Admin\Desktop\Bin.exe
Filesize
566KB

MD5
0f69b38426bbbcb5528aaef9d7d6e054

SHA1
bbc0cec1892e41a0d854b33bf8d8f156367caf6b

SHA256
24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622

SHA512
21bc78a63dc7aa27500261d43747ccf5589a95ebf9a866f7e68bdc8ec89c573a9352e1af438cb8360a29ceee63fb6788841f0f3399159e1f0069bd17abf59df8

Download Submit
C:\Users\Admin\Desktop\Bin.exe
Filesize
566KB

MD5
0f69b38426bbbcb5528aaef9d7d6e054

SHA1
bbc0cec1892e41a0d854b33bf8d8f156367caf6b

SHA256
24584863e35b36fa2cd4285a6aafd6a117ea0585c5c92ddf289ab13b8af87622

SHA512
21bc78a63dc7aa27500261d43747ccf5589a95ebf9a866f7e68bdc8ec89c573a9352e1af438cb8360a29ceee63fb6788841f0f3399159e1f0069bd17abf59df8

Download Submit
memory/372-146-0x0000000000340000-0x00000000003D4000-memory.dmp

Filesize
592KB

Download
memory/372-143-0x0000000000000000-mapping.dmp

Download
memory/3092-139-0x0000000000000000-mapping.dmp

Download
memory/3144-138-0x0000000000000000-mapping.dmp

Download
memory/3940-149-0x0000000000000000-mapping.dmp

Download
memory/4032-141-0x0000000000000000-mapping.dmp

Download
memory/4132-140-0x0000000000000000-mapping.dmp

Download
memory/4308-151-0x0000000000000000-mapping.dmp

Download
memory/4324-147-0x0000000000000000-mapping.dmp

Download
memory/4324-153-0x0000000006AB0000-0x0000000006B16000-memory.dmp

Filesize
408KB

Download
memory/4324-148-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4564-132-0x00000000002D0000-0x0000000000364000-memory.dmp

Filesize
592KB

Download
memory/4564-136-0x00000000068B0000-0x00000000068BA000-memory.dmp

Filesize
40KB

Download
memory/4564-135-0x0000000006800000-0x0000000006892000-memory.dmp

Filesize
584KB

Download
memory/4564-134-0x0000000006CB0000-0x0000000007254000-memory.dmp

Filesize
5.6MB

Download
memory/4564-133-0x0000000005990000-0x0000000005A2C000-memory.dmp

Filesize
624KB

Download
memory/4788-137-0x0000000000000000-mapping.dmp

Download
memory/4872-142-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads