nanocore | 3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
26/04/2024, 01:06

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General

Target

3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
Size

660KB
MD5

46d06b32a50fd0c1a1981695e6504aa5
SHA1

562f1b0f554ab339d851e7c031059d20a1c88af6
SHA256

3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335
SHA512

c6ff00d37a3d8f8716df5a67d5f6e16bec0ec1a5ea4625138651ca8bc43ffda9e4ff77c158803d3399aa7543ec88dd37551215f60e159d226ac307cfd6e4cb44
SSDEEP

12288:nYIPXjeFKYoJyZTH5Zx161j9QMRLPfVtc1qHNanyP8POCxU:nYIPGKYokbF01j9b1tcoMyP8POCy

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

amechi.duckdns.org:4190

Mutex

1e951a16-0899-4a49-9bed-fad9fc6657d1

Attributes

activate_away_mode
true
backup_connection_host
amechi.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-02-05T10:09:03.565293536Z
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
clement
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
1e951a16-0899-4a49-9bed-fad9fc6657d1
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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SMTP Subsystem = "C:\\Program Files (x86)\\SMTP Subsystem\\smtpss.exe"	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4848 set thread context of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
File opened for modification	C:\Program Files (x86)\SMTP Subsystem\smtpss.exe	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5104	4848	WerFault.exe	89

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2592	schtasks.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
4008	powershell.exe
4008	powershell.exe
4608	powershell.exe
4608	powershell.exe
4008	powershell.exe
4608	powershell.exe
3636	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
3636	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
3636	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
3636	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3636	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
Token: SeDebugPrivilege	4608	powershell.exe
Token: SeDebugPrivilege	4008	powershell.exe
Token: SeDebugPrivilege	3636	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 4848 wrote to memory of 4008	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	97
PID 4848 wrote to memory of 4008	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	97
PID 4848 wrote to memory of 4008	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	97
PID 4848 wrote to memory of 4608	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	99
PID 4848 wrote to memory of 4608	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	99
PID 4848 wrote to memory of 4608	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	99
PID 4848 wrote to memory of 2592	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	101
PID 4848 wrote to memory of 2592	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	101
PID 4848 wrote to memory of 2592	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	101
PID 4848 wrote to memory of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103
PID 4848 wrote to memory of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103
PID 4848 wrote to memory of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103
PID 4848 wrote to memory of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103
PID 4848 wrote to memory of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103
PID 4848 wrote to memory of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103
PID 4848 wrote to memory of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103
PID 4848 wrote to memory of 3636	4848	3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe	103

C:\Users\Admin\AppData\Local\Temp\3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
"C:\Users\Admin\AppData\Local\Temp\3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4848
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4008
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\CXAoYUE.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4608
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CXAoYUE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp504E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2592
- C:\Users\Admin\AppData\Local\Temp\3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe
  "C:\Users\Admin\AppData\Local\Temp\3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe"
  2⤵
  - 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:3636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 1440
  2⤵
  - Program crash
  PID:5104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4848 -ip 4848
1⤵
PID:564

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3804 --field-trial-handle=2280,i,11703952675008463361,17436195144517971517,262144 --variations-seed-version /prefetch:8
1⤵
PID:4212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

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\Microsoft\CLR_v4.0_32\UsageLogs\3796fdf35ca6c4557746dc1de61e477fe9972bc44a2fb23503e302c27fab4335.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
30614cb4b1e3407e224f0653c01feee9

SHA1
1641c7f1f8ee387d5e46f00bc76b244e7829f83d

SHA256
699b012ad461073050359d4efb6826a07029215fa574cc5ba7e5e238d165215d

SHA512
dd0df25771519d2a12c15e1de8b258cc208e1fc2cd7a47012bdfbe8e7b96c2d09b5d89f1005c2ab1b873d3d7521c578989e927a907e3e4fb424d991f64948521

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vjfdoyqe.5ng.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp504E.tmp

Filesize
1KB

MD5
4f8afa6f3e43a159737763fba31f7ef9

SHA1
323b80e909437de3b60aea5b20bf1b90b77a721c

SHA256
5f63f21c2acce5c7ed4cfc2825ef510a23d39af2fe0d5ad32385d8d32c2d49f1

SHA512
7e77200883a529864505f6f9016549f3cfff2c900278d7b6d540e11ec5652b2ddf08cc8d66be055b836eff4b45d5136d1f80e5371baf467eadebcb9b86927cda

Download Submit
memory/3636-103-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/3636-55-0x00000000059B0000-0x00000000059BA000-memory.dmp

Filesize
40KB

Download
memory/3636-54-0x00000000057E0000-0x00000000057FE000-memory.dmp

Filesize
120KB

Download
memory/3636-53-0x00000000057D0000-0x00000000057DA000-memory.dmp

Filesize
40KB

Download
memory/3636-42-0x00000000059C0000-0x00000000059D0000-memory.dmp

Filesize
64KB

Download
memory/3636-27-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/3636-104-0x00000000059C0000-0x00000000059D0000-memory.dmp

Filesize
64KB

Download
memory/3636-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4008-88-0x0000000007D20000-0x0000000007D3A000-memory.dmp

Filesize
104KB

Download
memory/4008-89-0x0000000007D90000-0x0000000007D9A000-memory.dmp

Filesize
40KB

Download
memory/4008-101-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/4008-95-0x0000000008040000-0x0000000008048000-memory.dmp

Filesize
32KB

Download
memory/4008-94-0x0000000008060000-0x000000000807A000-memory.dmp

Filesize
104KB

Download
memory/4008-92-0x0000000007F50000-0x0000000007F5E000-memory.dmp

Filesize
56KB

Download
memory/4008-15-0x0000000003030000-0x0000000003066000-memory.dmp

Filesize
216KB

Download
memory/4008-90-0x0000000007FA0000-0x0000000008036000-memory.dmp

Filesize
600KB

Download
memory/4008-16-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/4008-18-0x00000000055E0000-0x00000000055F0000-memory.dmp

Filesize
64KB

Download
memory/4008-87-0x0000000008360000-0x00000000089DA000-memory.dmp

Filesize
6.5MB

Download
memory/4008-63-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/4008-41-0x0000000006330000-0x0000000006396000-memory.dmp

Filesize
408KB

Download
memory/4008-85-0x0000000007BC0000-0x0000000007C63000-memory.dmp

Filesize
652KB

Download
memory/4008-75-0x000000007F0D0000-0x000000007F0E0000-memory.dmp

Filesize
64KB

Download
memory/4008-64-0x000000006F490000-0x000000006F4DC000-memory.dmp

Filesize
304KB

Download
memory/4008-59-0x00000000055E0000-0x00000000055F0000-memory.dmp

Filesize
64KB

Download
memory/4008-56-0x0000000006A00000-0x0000000006A1E000-memory.dmp

Filesize
120KB

Download
memory/4608-22-0x0000000002FE0000-0x0000000002FF0000-memory.dmp

Filesize
64KB

Download
memory/4608-19-0x0000000005A30000-0x0000000006058000-memory.dmp

Filesize
6.2MB

Download
memory/4608-57-0x0000000006CF0000-0x0000000006D3C000-memory.dmp

Filesize
304KB

Download
memory/4608-58-0x0000000002FE0000-0x0000000002FF0000-memory.dmp

Filesize
64KB

Download
memory/4608-20-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/4608-61-0x0000000007930000-0x0000000007962000-memory.dmp

Filesize
200KB

Download
memory/4608-60-0x000000007F360000-0x000000007F370000-memory.dmp

Filesize
64KB

Download
memory/4608-74-0x0000000006F20000-0x0000000006F3E000-memory.dmp

Filesize
120KB

Download
memory/4608-102-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/4608-28-0x0000000005970000-0x0000000005992000-memory.dmp

Filesize
136KB

Download
memory/4608-62-0x000000006F490000-0x000000006F4DC000-memory.dmp

Filesize
304KB

Download
memory/4608-30-0x00000000062D0000-0x0000000006336000-memory.dmp

Filesize
408KB

Download
memory/4608-93-0x0000000007ED0000-0x0000000007EE4000-memory.dmp

Filesize
80KB

Download
memory/4608-91-0x0000000007E90000-0x0000000007EA1000-memory.dmp

Filesize
68KB

Download
memory/4608-21-0x0000000002FE0000-0x0000000002FF0000-memory.dmp

Filesize
64KB

Download
memory/4848-29-0x000000000E9B0000-0x000000000ED04000-memory.dmp

Filesize
3.3MB

Download
memory/4848-2-0x0000000005F00000-0x00000000064A4000-memory.dmp

Filesize
5.6MB

Download
memory/4848-17-0x0000000005870000-0x0000000005880000-memory.dmp

Filesize
64KB

Download
memory/4848-86-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/4848-0-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/4848-6-0x0000000005ED0000-0x0000000005EF0000-memory.dmp

Filesize
128KB

Download
memory/4848-4-0x0000000005870000-0x0000000005880000-memory.dmp

Filesize
64KB

Download
memory/4848-8-0x000000000ACE0000-0x000000000AD5A000-memory.dmp

Filesize
488KB

Download
memory/4848-10-0x0000000074C10000-0x00000000753C0000-memory.dmp

Filesize
7.7MB

Download
memory/4848-5-0x00000000058F0000-0x00000000058FA000-memory.dmp

Filesize
40KB

Download
memory/4848-7-0x00000000082F0000-0x0000000008304000-memory.dmp

Filesize
80KB

Download
memory/4848-3-0x0000000005950000-0x00000000059E2000-memory.dmp

Filesize
584KB

Download
memory/4848-9-0x000000000DE00000-0x000000000DE9C000-memory.dmp

Filesize
624KB

Download
memory/4848-1-0x0000000000E50000-0x0000000000EFC000-memory.dmp

Filesize
688KB

Download