nanocore | b449b20b95c94cd1dc77a0edbd7eb8c183392ff0bbb53f2ca374d129f5ace20a

Analysis

max time kernel
139s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
24-06-2024 21:01

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General

Target

5a42e2442b79943419bf0e39ad7be827.exe
Size

600KB
MD5

5a42e2442b79943419bf0e39ad7be827
SHA1

1a4a5d7594fbdfb3189915502a63c801a2180389
SHA256

b449b20b95c94cd1dc77a0edbd7eb8c183392ff0bbb53f2ca374d129f5ace20a
SHA512

f18e569b0fc487b77fbe55cb7beadfac99723d5ab0111d03e62bee1cb01db3b8bd6f97a050f95768f77f5eaddf78bf08f7f12ba4ffa52bd7e8e55a60bb4167ed
SSDEEP

12288:U9PcfpbzzGwWjZK2P5VQiYwhKrmXLZNa8pKp1wFqexdCZMxZ3Q:viDj7xVQi9hOmXowFTCZQtQ

Score

10^/10

nanocore execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

newsddawork.3utilities.com:1620

maxlogs.webhop.me:1620

Mutex

1fa46b72-10f9-4da3-bc15-84dde165706d

Attributes

activate_away_mode
true
backup_connection_host
maxlogs.webhop.me
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-02-17T03:41:10.727034736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1620
default_group
NewBin
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
1fa46b72-10f9-4da3-bc15-84dde165706d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
newsddawork.3utilities.com
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
Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exe

pid process

4584 powershell.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:

5a42e2442b79943419bf0e39ad7be827.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation 5a42e2442b79943419bf0e39ad7be827.exe
Adds Run key to start application 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Processes:

MSBuild.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Subsystem = "C:\\Program Files (x86)\\WPA Subsystem\\wpass.exe" MSBuild.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

5a42e2442b79943419bf0e39ad7be827.exe

description pid process target process

PID 1516 set thread context of 1168 1516 5a42e2442b79943419bf0e39ad7be827.exe MSBuild.exe
Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description ioc process

File created C:\Program Files (x86)\WPA Subsystem\wpass.exe MSBuild.exe
File opened for modification C:\Program Files (x86)\WPA Subsystem\wpass.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

492 schtasks.exe

pid	process
4584	powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	5a42e2442b79943419bf0e39ad7be827.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Subsystem = "C:\\Program Files (x86)\\WPA Subsystem\\wpass.exe"	MSBuild.exe

description	pid	process	target process
PID 1516 set thread context of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe

description	ioc	process
File created	C:\Program Files (x86)\WPA Subsystem\wpass.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\WPA Subsystem\wpass.exe	MSBuild.exe

pid	process
492	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

5a42e2442b79943419bf0e39ad7be827.exepowershell.exeMSBuild.exe

pid	process
1516	5a42e2442b79943419bf0e39ad7be827.exe
4584	powershell.exe
1516	5a42e2442b79943419bf0e39ad7be827.exe
4584	powershell.exe
1168	MSBuild.exe
1168	MSBuild.exe
1168	MSBuild.exe
1168	MSBuild.exe
1168	MSBuild.exe
1168	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

1168 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

5a42e2442b79943419bf0e39ad7be827.exepowershell.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 1516 5a42e2442b79943419bf0e39ad7be827.exe
Token: SeDebugPrivilege 4584 powershell.exe
Token: SeDebugPrivilege 1168 MSBuild.exe

pid	process
1168	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	1516	5a42e2442b79943419bf0e39ad7be827.exe
Token: SeDebugPrivilege	4584	powershell.exe
Token: SeDebugPrivilege	1168	MSBuild.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

5a42e2442b79943419bf0e39ad7be827.exe

description	pid	process	target process
PID 1516 wrote to memory of 4584	1516	5a42e2442b79943419bf0e39ad7be827.exe	powershell.exe
PID 1516 wrote to memory of 4584	1516	5a42e2442b79943419bf0e39ad7be827.exe	powershell.exe
PID 1516 wrote to memory of 4584	1516	5a42e2442b79943419bf0e39ad7be827.exe	powershell.exe
PID 1516 wrote to memory of 492	1516	5a42e2442b79943419bf0e39ad7be827.exe	schtasks.exe
PID 1516 wrote to memory of 492	1516	5a42e2442b79943419bf0e39ad7be827.exe	schtasks.exe
PID 1516 wrote to memory of 492	1516	5a42e2442b79943419bf0e39ad7be827.exe	schtasks.exe
PID 1516 wrote to memory of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe
PID 1516 wrote to memory of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe
PID 1516 wrote to memory of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe
PID 1516 wrote to memory of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe
PID 1516 wrote to memory of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe
PID 1516 wrote to memory of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe
PID 1516 wrote to memory of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe
PID 1516 wrote to memory of 1168	1516	5a42e2442b79943419bf0e39ad7be827.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\5a42e2442b79943419bf0e39ad7be827.exe
"C:\Users\Admin\AppData\Local\Temp\5a42e2442b79943419bf0e39ad7be827.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1516

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zzTmYAoKh.exe"
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4584

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zzTmYAoKh" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6D02.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:492

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1168

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ctlhq3wd.4ci.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6D02.tmp
Filesize
1KB

MD5
2b5b9a2599463629310ea96d17b97fab

SHA1
c226ce31bd8580d4f1537eac160201801f4fcbdd

SHA256
f86c23e891fba57801193907a3262f0b832b8ebd2df68f9617c1cbb09c98b717

SHA512
81136fc4a19ab1f2747ed331f14c63e37d782303ff0d5189d9979b04a439663ba9c60fe886652d3ea3644b4f1eb31ca7ca0fafa36e51bcc736616fc3d7e00b0c

Download Submit
memory/1168-76-0x0000000006990000-0x000000000699E000-memory.dmp

Filesize
56KB

Download
memory/1168-27-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1168-77-0x00000000069A0000-0x00000000069B2000-memory.dmp

Filesize
72KB

Download
memory/1168-44-0x0000000006200000-0x000000000620A000-memory.dmp

Filesize
40KB

Download
memory/1168-43-0x00000000060D0000-0x00000000060EE000-memory.dmp

Filesize
120KB

Download
memory/1168-42-0x0000000005450000-0x000000000545A000-memory.dmp

Filesize
40KB

Download
memory/1168-74-0x0000000006950000-0x0000000006962000-memory.dmp

Filesize
72KB

Download
memory/1168-78-0x00000000069B0000-0x00000000069BC000-memory.dmp

Filesize
48KB

Download
memory/1168-85-0x0000000006A70000-0x0000000006A84000-memory.dmp

Filesize
80KB

Download
memory/1168-79-0x00000000069C0000-0x00000000069CE000-memory.dmp

Filesize
56KB

Download
memory/1168-81-0x00000000069E0000-0x00000000069F0000-memory.dmp

Filesize
64KB

Download
memory/1168-87-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1168-84-0x0000000006A30000-0x0000000006A5E000-memory.dmp

Filesize
184KB

Download
memory/1168-80-0x00000000069D0000-0x00000000069E4000-memory.dmp

Filesize
80KB

Download
memory/1168-82-0x0000000006A00000-0x0000000006A14000-memory.dmp

Filesize
80KB

Download
memory/1168-75-0x0000000006960000-0x000000000697A000-memory.dmp

Filesize
104KB

Download
memory/1168-83-0x0000000006A20000-0x0000000006A2E000-memory.dmp

Filesize
56KB

Download
memory/1168-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1516-8-0x0000000006720000-0x00000000067B2000-memory.dmp

Filesize
584KB

Download
memory/1516-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1516-12-0x00000000063C0000-0x000000000643A000-memory.dmp

Filesize
488KB

Download
memory/1516-11-0x0000000006390000-0x000000000639C000-memory.dmp

Filesize
48KB

Download
memory/1516-30-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1516-10-0x0000000004F70000-0x0000000004F78000-memory.dmp

Filesize
32KB

Download
memory/1516-9-0x0000000004E90000-0x0000000004EA2000-memory.dmp

Filesize
72KB

Download
memory/1516-7-0x0000000005A60000-0x0000000005F8C000-memory.dmp

Filesize
5.2MB

Download
memory/1516-6-0x0000000004CA0000-0x0000000004D3C000-memory.dmp

Filesize
624KB

Download
memory/1516-5-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1516-4-0x0000000004A80000-0x0000000004A8A000-memory.dmp

Filesize
40KB

Download
memory/1516-3-0x00000000049D0000-0x0000000004A62000-memory.dmp

Filesize
584KB

Download
memory/1516-2-0x0000000004F80000-0x0000000005524000-memory.dmp

Filesize
5.6MB

Download
memory/1516-1-0x0000000000080000-0x000000000011C000-memory.dmp

Filesize
624KB

Download
memory/4584-18-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4584-59-0x0000000007580000-0x0000000007623000-memory.dmp

Filesize
652KB

Download
memory/4584-60-0x0000000007CF0000-0x000000000836A000-memory.dmp

Filesize
6.5MB

Download
memory/4584-61-0x00000000076B0000-0x00000000076CA000-memory.dmp

Filesize
104KB

Download
memory/4584-63-0x0000000007720000-0x000000000772A000-memory.dmp

Filesize
40KB

Download
memory/4584-64-0x0000000007930000-0x00000000079C6000-memory.dmp

Filesize
600KB

Download
memory/4584-65-0x00000000078B0000-0x00000000078C1000-memory.dmp

Filesize
68KB

Download
memory/4584-66-0x00000000078E0000-0x00000000078EE000-memory.dmp

Filesize
56KB

Download
memory/4584-67-0x00000000078F0000-0x0000000007904000-memory.dmp

Filesize
80KB

Download
memory/4584-68-0x00000000079F0000-0x0000000007A0A000-memory.dmp

Filesize
104KB

Download
memory/4584-69-0x00000000079D0000-0x00000000079D8000-memory.dmp

Filesize
32KB

Download
memory/4584-72-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4584-58-0x0000000006940000-0x000000000695E000-memory.dmp

Filesize
120KB

Download
memory/4584-48-0x0000000070520000-0x000000007056C000-memory.dmp

Filesize
304KB

Download
memory/4584-47-0x0000000007340000-0x0000000007372000-memory.dmp

Filesize
200KB

Download
memory/4584-46-0x0000000006420000-0x000000000646C000-memory.dmp

Filesize
304KB

Download
memory/4584-45-0x0000000006390000-0x00000000063AE000-memory.dmp

Filesize
120KB

Download
memory/4584-29-0x0000000005D50000-0x00000000060A4000-memory.dmp

Filesize
3.3MB

Download
memory/4584-24-0x00000000054E0000-0x0000000005502000-memory.dmp

Filesize
136KB

Download
memory/4584-25-0x0000000005BB0000-0x0000000005C16000-memory.dmp

Filesize
408KB

Download
memory/4584-26-0x0000000005C20000-0x0000000005C86000-memory.dmp

Filesize
408KB

Download
memory/4584-22-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4584-20-0x0000000005510000-0x0000000005B38000-memory.dmp

Filesize
6.2MB

Download
memory/4584-21-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/4584-17-0x0000000004DC0000-0x0000000004DF6000-memory.dmp

Filesize
216KB

Download