nanocore | a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d

Analysis

max time kernel
144s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
25-06-2024 02:26

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General

Target

691F6CB0459F268016AD101CF6158DFF.exe
Size

931KB
MD5

691f6cb0459f268016ad101cf6158dff
SHA1

da86d59a096e32846efb61b1ce55d1a5dbb1cb02
SHA256

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d
SHA512

a09174c91dfc3ba00b792aed4b0b8eb4e5244d6590a71cdf81a884634ce124b85003a49aa7bd5cc0784a993c9b0c8d00f9bef614b3dcda8faf57dd65b4e2635e
SSDEEP

24576:m8xWi7p5e9XwX6n+aV6b/XOyc2JfWz13jO:m0WiDOgXc+aVqCj

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:

691F6CB0459F268016AD101CF6158DFF.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation 691F6CB0459F268016AD101CF6158DFF.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\DPI Subsystem = "C:\\Program Files (x86)\\DPI Subsystem\\dpiss.exe" MSBuild.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

691F6CB0459F268016AD101CF6158DFF.exe

description pid process target process

PID 3932 set thread context of 3304 3932 691F6CB0459F268016AD101CF6158DFF.exe MSBuild.exe
Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description ioc process

File created C:\Program Files (x86)\DPI Subsystem\dpiss.exe MSBuild.exe
File opened for modification C:\Program Files (x86)\DPI Subsystem\dpiss.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

4688 schtasks.exe
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

691F6CB0459F268016AD101CF6158DFF.exepowershell.exeMSBuild.exe

pid process

3932 691F6CB0459F268016AD101CF6158DFF.exe
3932 691F6CB0459F268016AD101CF6158DFF.exe
4584 powershell.exe
3304 MSBuild.exe
3304 MSBuild.exe
3304 MSBuild.exe
4584 powershell.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

3304 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

691F6CB0459F268016AD101CF6158DFF.exepowershell.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 3932 691F6CB0459F268016AD101CF6158DFF.exe
Token: SeDebugPrivilege 4584 powershell.exe
Token: SeDebugPrivilege 3304 MSBuild.exe

pid	process
4584	powershell.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	691F6CB0459F268016AD101CF6158DFF.exe

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

description	pid	process	target process
PID 3932 set thread context of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe

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

pid	process
4688	schtasks.exe

pid	process
3932	691F6CB0459F268016AD101CF6158DFF.exe
3932	691F6CB0459F268016AD101CF6158DFF.exe
4584	powershell.exe
3304	MSBuild.exe
3304	MSBuild.exe
3304	MSBuild.exe
4584	powershell.exe

pid	process
3304	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	3932	691F6CB0459F268016AD101CF6158DFF.exe
Token: SeDebugPrivilege	4584	powershell.exe
Token: SeDebugPrivilege	3304	MSBuild.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

691F6CB0459F268016AD101CF6158DFF.exe

description	pid	process	target process
PID 3932 wrote to memory of 4584	3932	691F6CB0459F268016AD101CF6158DFF.exe	powershell.exe
PID 3932 wrote to memory of 4584	3932	691F6CB0459F268016AD101CF6158DFF.exe	powershell.exe
PID 3932 wrote to memory of 4584	3932	691F6CB0459F268016AD101CF6158DFF.exe	powershell.exe
PID 3932 wrote to memory of 4688	3932	691F6CB0459F268016AD101CF6158DFF.exe	schtasks.exe
PID 3932 wrote to memory of 4688	3932	691F6CB0459F268016AD101CF6158DFF.exe	schtasks.exe
PID 3932 wrote to memory of 4688	3932	691F6CB0459F268016AD101CF6158DFF.exe	schtasks.exe
PID 3932 wrote to memory of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe
PID 3932 wrote to memory of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe
PID 3932 wrote to memory of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe
PID 3932 wrote to memory of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe
PID 3932 wrote to memory of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe
PID 3932 wrote to memory of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe
PID 3932 wrote to memory of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe
PID 3932 wrote to memory of 3304	3932	691F6CB0459F268016AD101CF6158DFF.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\691F6CB0459F268016AD101CF6158DFF.exe
"C:\Users\Admin\AppData\Local\Temp\691F6CB0459F268016AD101CF6158DFF.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3932

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\mmkGgxmHZUo.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\mmkGgxmHZUo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6FA2.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:4688

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:3304

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0tmzuopa.qct.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp6FA2.tmp
Filesize
1KB

MD5
1346126911a6051449c0b84534a5d51c

SHA1
66ab7fdf71cfe3c25208dbe4a05f2d3fc659b32e

SHA256
bf9b78aee7af43e235a75d0e0cb8791a6e3f17de4d0889fdfb99210dcf32ad10

SHA512
85f5127e68a193904a6eb7f0fe80ca40049937e6749dfeb7d5fe319a12297c6c05cb9f546775d81a8c938e00d2a370f8c360cad12ee89d4c3ec1c0d04392a46f

Download Submit
memory/3304-73-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/3304-43-0x00000000055C0000-0x00000000055DE000-memory.dmp

Filesize
120KB

Download
memory/3304-45-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/3304-44-0x0000000005740000-0x000000000574A000-memory.dmp

Filesize
40KB

Download
memory/3304-42-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/3304-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3304-41-0x0000000005360000-0x000000000536A000-memory.dmp

Filesize
40KB

Download
memory/3932-4-0x0000000005A30000-0x0000000005A3A000-memory.dmp

Filesize
40KB

Download
memory/3932-6-0x0000000005C50000-0x0000000005CEC000-memory.dmp

Filesize
624KB

Download
memory/3932-11-0x0000000009B20000-0x0000000009BAA000-memory.dmp

Filesize
552KB

Download
memory/3932-12-0x0000000009E40000-0x0000000009EBA000-memory.dmp

Filesize
488KB

Download
memory/3932-9-0x0000000005D50000-0x0000000005D58000-memory.dmp

Filesize
32KB

Download
memory/3932-8-0x0000000005D30000-0x0000000005D42000-memory.dmp

Filesize
72KB

Download
memory/3932-7-0x0000000006910000-0x0000000006E3C000-memory.dmp

Filesize
5.2MB

Download
memory/3932-10-0x0000000005DF0000-0x0000000005DFC000-memory.dmp

Filesize
48KB

Download
memory/3932-0-0x000000007484E000-0x000000007484F000-memory.dmp

Filesize
4KB

Download
memory/3932-5-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/3932-25-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/3932-3-0x0000000005970000-0x0000000005A02000-memory.dmp

Filesize
584KB

Download
memory/3932-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

Filesize
5.6MB

Download
memory/3932-1-0x0000000000FD0000-0x00000000010C0000-memory.dmp

Filesize
960KB

Download
memory/4584-39-0x0000000006220000-0x0000000006574000-memory.dmp

Filesize
3.3MB

Download
memory/4584-48-0x0000000007790000-0x00000000077C2000-memory.dmp

Filesize
200KB

Download
memory/4584-27-0x0000000006090000-0x00000000060F6000-memory.dmp

Filesize
408KB

Download
memory/4584-28-0x00000000061B0000-0x0000000006216000-memory.dmp

Filesize
408KB

Download
memory/4584-26-0x0000000005830000-0x0000000005852000-memory.dmp

Filesize
136KB

Download
memory/4584-19-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/4584-22-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/4584-47-0x0000000006870000-0x00000000068BC000-memory.dmp

Filesize
304KB

Download
memory/4584-46-0x00000000067E0000-0x00000000067FE000-memory.dmp

Filesize
120KB

Download
memory/4584-20-0x00000000058B0000-0x0000000005ED8000-memory.dmp

Filesize
6.2MB

Download
memory/4584-59-0x0000000006DC0000-0x0000000006DDE000-memory.dmp

Filesize
120KB

Download
memory/4584-60-0x00000000079E0000-0x0000000007A83000-memory.dmp

Filesize
652KB

Download
memory/4584-49-0x00000000703C0000-0x000000007040C000-memory.dmp

Filesize
304KB

Download
memory/4584-24-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/4584-61-0x0000000008160000-0x00000000087DA000-memory.dmp

Filesize
6.5MB

Download
memory/4584-62-0x0000000007B20000-0x0000000007B3A000-memory.dmp

Filesize
104KB

Download
memory/4584-63-0x0000000007B90000-0x0000000007B9A000-memory.dmp

Filesize
40KB

Download
memory/4584-64-0x0000000007DA0000-0x0000000007E36000-memory.dmp

Filesize
600KB

Download
memory/4584-65-0x0000000007D20000-0x0000000007D31000-memory.dmp

Filesize
68KB

Download
memory/4584-67-0x0000000007D60000-0x0000000007D74000-memory.dmp

Filesize
80KB

Download
memory/4584-68-0x0000000007E60000-0x0000000007E7A000-memory.dmp

Filesize
104KB

Download
memory/4584-69-0x0000000007E40000-0x0000000007E48000-memory.dmp

Filesize
32KB

Download
memory/4584-66-0x0000000007D50000-0x0000000007D5E000-memory.dmp

Filesize
56KB

Download
memory/4584-72-0x0000000074840000-0x0000000074FF0000-memory.dmp

Filesize
7.7MB

Download
memory/4584-17-0x0000000005220000-0x0000000005256000-memory.dmp

Filesize
216KB

Download