nanocore | a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d

Analysis

max time kernel
145s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
26-06-2024 01:29

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General

Target

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.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

4004 powershell.exe

pid	process
4004	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:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.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\AGP Service = "C:\\Program Files (x86)\\AGP Service\\agpsv.exe"	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe

description	pid	process	target process
PID 2652 set thread context of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe

Drops file in Program Files directory 2 IoCs

Processes:

MSBuild.exe

description	ioc	process
File created	C:\Program Files (x86)\AGP Service\agpsv.exe	MSBuild.exe
File opened for modification	C:\Program Files (x86)\AGP Service\agpsv.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

4648 schtasks.exe

pid	process
4648	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exepowershell.exeMSBuild.exe

pid	process
2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
4004	powershell.exe
2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
4004	powershell.exe
5096	MSBuild.exe
5096	MSBuild.exe
5096	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

5096 MSBuild.exe

pid	process
5096	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exepowershell.exeMSBuild.exe

description	pid	process
Token: SeDebugPrivilege	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
Token: SeDebugPrivilege	4004	powershell.exe
Token: SeDebugPrivilege	5096	MSBuild.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe

description	pid	process	target process
PID 2652 wrote to memory of 4004	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	powershell.exe
PID 2652 wrote to memory of 4004	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	powershell.exe
PID 2652 wrote to memory of 4004	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	powershell.exe
PID 2652 wrote to memory of 4648	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	schtasks.exe
PID 2652 wrote to memory of 4648	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	schtasks.exe
PID 2652 wrote to memory of 4648	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	schtasks.exe
PID 2652 wrote to memory of 3348	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 3348	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 3348	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe
PID 2652 wrote to memory of 5096	2652	a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe
"C:\Users\Admin\AppData\Local\Temp\a3b66fd528f2728fad40ab4eb46c8f1fba303b2c3ca54088fff6223da96c483d.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2652

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:4004

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\mmkGgxmHZUo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp63FA.tmp"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:4648

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
2⤵
PID:3348

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:5096

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bikw3nuw.gmv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp63FA.tmp

Filesize
1KB

MD5
58d1d11d4fa2cb8b18da906d38cd261c

SHA1
3d5a8008d3a15381ad8a7017ffff88d298ba86f2

SHA256
13fdc9e804520abccd2b3a109ab226aef464a81c9ec2d3bc89530248fd19cf4b

SHA512
b163479746e945c873f0e064a79715383d9ef525466824a39fce6edd808b99ea5bed51376d916c0e781317370370cbca8cede8b664665647c1159358fff84b8a

Download Submit
memory/2652-8-0x00000000055D0000-0x00000000055E2000-memory.dmp

Filesize
72KB

Download
memory/2652-9-0x0000000006080000-0x0000000006088000-memory.dmp

Filesize
32KB

Download
memory/2652-4-0x00000000050A0000-0x00000000050AA000-memory.dmp

Filesize
40KB

Download
memory/2652-5-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/2652-6-0x0000000005340000-0x00000000053DC000-memory.dmp

Filesize
624KB

Download
memory/2652-7-0x00000000060D0000-0x00000000065FC000-memory.dmp

Filesize
5.2MB

Download
memory/2652-2-0x00000000055F0000-0x0000000005B94000-memory.dmp

Filesize
5.6MB

Download
memory/2652-3-0x00000000050E0000-0x0000000005172000-memory.dmp

Filesize
584KB

Download
memory/2652-10-0x0000000006090000-0x000000000609C000-memory.dmp

Filesize
48KB

Download
memory/2652-11-0x0000000009230000-0x00000000092BA000-memory.dmp

Filesize
552KB

Download
memory/2652-12-0x0000000009550000-0x00000000095CA000-memory.dmp

Filesize
488KB

Download
memory/2652-38-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/2652-0-0x0000000074BAE000-0x0000000074BAF000-memory.dmp

Filesize
4KB

Download
memory/2652-1-0x00000000005A0000-0x0000000000690000-memory.dmp

Filesize
960KB

Download
memory/4004-25-0x0000000005990000-0x00000000059F6000-memory.dmp

Filesize
408KB

Download
memory/4004-46-0x00000000070F0000-0x0000000007122000-memory.dmp

Filesize
200KB

Download
memory/4004-70-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/4004-22-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/4004-19-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/4004-28-0x0000000005AF0000-0x0000000005B56000-memory.dmp

Filesize
408KB

Download
memory/4004-18-0x00000000052F0000-0x0000000005918000-memory.dmp

Filesize
6.2MB

Download
memory/4004-24-0x0000000005280000-0x00000000052A2000-memory.dmp

Filesize
136KB

Download
memory/4004-37-0x0000000005C60000-0x0000000005FB4000-memory.dmp

Filesize
3.3MB

Download
memory/4004-17-0x00000000028B0000-0x00000000028E6000-memory.dmp

Filesize
216KB

Download
memory/4004-41-0x0000000006110000-0x000000000612E000-memory.dmp

Filesize
120KB

Download
memory/4004-67-0x0000000007770000-0x0000000007778000-memory.dmp

Filesize
32KB

Download
memory/4004-43-0x0000000006170000-0x00000000061BC000-memory.dmp

Filesize
304KB

Download
memory/4004-66-0x0000000007790000-0x00000000077AA000-memory.dmp

Filesize
104KB

Download
memory/4004-65-0x0000000007690000-0x00000000076A4000-memory.dmp

Filesize
80KB

Download
memory/4004-21-0x0000000074BA0000-0x0000000075350000-memory.dmp

Filesize
7.7MB

Download
memory/4004-47-0x0000000075420000-0x000000007546C000-memory.dmp

Filesize
304KB

Download
memory/4004-57-0x00000000066E0000-0x00000000066FE000-memory.dmp

Filesize
120KB

Download
memory/4004-58-0x0000000007330000-0x00000000073D3000-memory.dmp

Filesize
652KB

Download
memory/4004-59-0x0000000007A90000-0x000000000810A000-memory.dmp

Filesize
6.5MB

Download
memory/4004-60-0x0000000007450000-0x000000000746A000-memory.dmp

Filesize
104KB

Download
memory/4004-61-0x00000000074C0000-0x00000000074CA000-memory.dmp

Filesize
40KB

Download
memory/4004-62-0x00000000076D0000-0x0000000007766000-memory.dmp

Filesize
600KB

Download
memory/4004-63-0x0000000007650000-0x0000000007661000-memory.dmp

Filesize
68KB

Download
memory/4004-64-0x0000000007680000-0x000000000768E000-memory.dmp

Filesize
56KB

Download
memory/5096-45-0x00000000060D0000-0x00000000060DA000-memory.dmp

Filesize
40KB

Download
memory/5096-44-0x0000000005590000-0x00000000055AE000-memory.dmp

Filesize
120KB

Download
memory/5096-42-0x0000000005370000-0x000000000537A000-memory.dmp

Filesize
40KB

Download
memory/5096-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download