nanocore | 73faac219e34398e37026d1bebc1bb198a833ce5a97de2b56dd2a723d27456f6

Analysis

max time kernel
114s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-08-2024 08:16

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General

Target

fe336762e80da2b170280a2b1b836d90N.exe
Size

640KB
MD5

fe336762e80da2b170280a2b1b836d90
SHA1

55a234638622e0e67d380cc7f827e71a88ffcba8
SHA256

73faac219e34398e37026d1bebc1bb198a833ce5a97de2b56dd2a723d27456f6
SHA512

052966fccf969a883f8a12a0681d089d3c137dc444ff4df8d3b4dca1f8fce1196fb7ff411f0577ae1faea9b07284e9edd49226124c9cb22e4701829e7337d44b
SSDEEP

12288:b7WYyKnpG9iNdeK0xrhslCO3hF/+iX11Cj0hxIB6XTyG:b7WY1mrmh3Dn0ghxMcTyG

Score

10^/10

nanocore discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

mattwems38.ddns.net:57268

94.156.65.159:57268

Mutex

5c44c87f-5c9e-45b6-af06-33037a7e5217

Attributes

activate_away_mode
true
backup_connection_host
94.156.65.159
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-05-06T13:32:33.415272936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
true
connect_delay
4000
connection_port
57268
default_group
Cbembalyne
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
5c44c87f-5c9e-45b6-af06-33037a7e5217
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
mattwems38.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5009
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5008
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 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1032	powershell.exe
3324	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	fe336762e80da2b170280a2b1b836d90N.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\DNS Manager = "C:\\Program Files (x86)\\DNS Manager\\dnsmgr.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3676 set thread context of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DNS Manager\dnsmgr.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\DNS Manager\dnsmgr.exe	RegSvcs.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fe336762e80da2b170280a2b1b836d90N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

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

pid	Process
1680	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3324	powershell.exe
3324	powershell.exe
1032	powershell.exe
1032	powershell.exe
1032	powershell.exe
3828	RegSvcs.exe
3828	RegSvcs.exe
3828	RegSvcs.exe
3828	RegSvcs.exe
3324	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3828	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3324	powershell.exe
Token: SeDebugPrivilege	1032	powershell.exe
Token: SeDebugPrivilege	3828	RegSvcs.exe
Token: SeDebugPrivilege	3828	RegSvcs.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 1032	3676	fe336762e80da2b170280a2b1b836d90N.exe	95
PID 3676 wrote to memory of 1032	3676	fe336762e80da2b170280a2b1b836d90N.exe	95
PID 3676 wrote to memory of 1032	3676	fe336762e80da2b170280a2b1b836d90N.exe	95
PID 3676 wrote to memory of 3324	3676	fe336762e80da2b170280a2b1b836d90N.exe	97
PID 3676 wrote to memory of 3324	3676	fe336762e80da2b170280a2b1b836d90N.exe	97
PID 3676 wrote to memory of 3324	3676	fe336762e80da2b170280a2b1b836d90N.exe	97
PID 3676 wrote to memory of 1680	3676	fe336762e80da2b170280a2b1b836d90N.exe	99
PID 3676 wrote to memory of 1680	3676	fe336762e80da2b170280a2b1b836d90N.exe	99
PID 3676 wrote to memory of 1680	3676	fe336762e80da2b170280a2b1b836d90N.exe	99
PID 3676 wrote to memory of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101
PID 3676 wrote to memory of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101
PID 3676 wrote to memory of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101
PID 3676 wrote to memory of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101
PID 3676 wrote to memory of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101
PID 3676 wrote to memory of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101
PID 3676 wrote to memory of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101
PID 3676 wrote to memory of 3828	3676	fe336762e80da2b170280a2b1b836d90N.exe	101

C:\Users\Admin\AppData\Local\Temp\fe336762e80da2b170280a2b1b836d90N.exe
"C:\Users\Admin\AppData\Local\Temp\fe336762e80da2b170280a2b1b836d90N.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3676
- 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\fe336762e80da2b170280a2b1b836d90N.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1032
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gRHaoROCUiNvbS.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3324
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gRHaoROCUiNvbS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDAEF.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1680
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Adds Run key to start application
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:3828

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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\Temp\__PSScriptPolicyTest_w1pqd2mi.2p3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
1KB

MD5
a8ff93d9017047a47cbcd5d7136ddaad

SHA1
a2f0ffd101ee3c4d2eb215fefa857b8ac217ff78

SHA256
47436afdb0982b21010a04369bbca0f725dd1cbc41d92b03f77b5ab776d3406a

SHA512
beb5800c79f49033ecc485fce6efc641630f198eab1773c7728428c702a6c4d0c92b124312b89cc2c8352995355a2ae950c6497e8aa429435c98f4b2f4d2e150

Download Submit
memory/1032-73-0x0000000007B80000-0x0000000007B9A000-memory.dmp

Filesize
104KB

Download
memory/1032-72-0x00000000081C0000-0x000000000883A000-memory.dmp

Filesize
6.5MB

Download
memory/1032-95-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/1032-88-0x0000000007DC0000-0x0000000007DD4000-memory.dmp

Filesize
80KB

Download
memory/1032-85-0x0000000007E00000-0x0000000007E96000-memory.dmp

Filesize
600KB

Download
memory/1032-75-0x0000000007BF0000-0x0000000007BFA000-memory.dmp

Filesize
40KB

Download
memory/1032-60-0x0000000075160000-0x00000000751AC000-memory.dmp

Filesize
304KB

Download
memory/1032-71-0x0000000007880000-0x0000000007923000-memory.dmp

Filesize
652KB

Download
memory/1032-70-0x0000000006E50000-0x0000000006E6E000-memory.dmp

Filesize
120KB

Download
memory/1032-59-0x0000000007840000-0x0000000007872000-memory.dmp

Filesize
200KB

Download
memory/1032-18-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/1032-51-0x0000000006850000-0x000000000686E000-memory.dmp

Filesize
120KB

Download
memory/1032-19-0x0000000005A80000-0x00000000060A8000-memory.dmp

Filesize
6.2MB

Download
memory/1032-20-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/1032-52-0x0000000006D00000-0x0000000006D4C000-memory.dmp

Filesize
304KB

Download
memory/1032-17-0x0000000002F40000-0x0000000002F76000-memory.dmp

Filesize
216KB

Download
memory/1032-42-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3324-23-0x0000000005480000-0x00000000054E6000-memory.dmp

Filesize
408KB

Download
memory/3324-96-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3324-90-0x00000000071F0000-0x00000000071F8000-memory.dmp

Filesize
32KB

Download
memory/3324-47-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3324-21-0x0000000004BD0000-0x0000000004BF2000-memory.dmp

Filesize
136KB

Download
memory/3324-32-0x00000000055B0000-0x0000000005904000-memory.dmp

Filesize
3.3MB

Download
memory/3324-89-0x0000000007210000-0x000000000722A000-memory.dmp

Filesize
104KB

Download
memory/3324-22-0x0000000004C70000-0x0000000004CD6000-memory.dmp

Filesize
408KB

Download
memory/3324-31-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3324-87-0x0000000007100000-0x000000000710E000-memory.dmp

Filesize
56KB

Download
memory/3324-24-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3324-86-0x00000000070D0000-0x00000000070E1000-memory.dmp

Filesize
68KB

Download
memory/3324-74-0x0000000075160000-0x00000000751AC000-memory.dmp

Filesize
304KB

Download
memory/3676-9-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3676-8-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/3676-5-0x0000000005320000-0x000000000532A000-memory.dmp

Filesize
40KB

Download
memory/3676-2-0x0000000005910000-0x0000000005EB4000-memory.dmp

Filesize
5.6MB

Download
memory/3676-1-0x0000000000870000-0x0000000000916000-memory.dmp

Filesize
664KB

Download
memory/3676-50-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3676-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/3676-4-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/3676-10-0x00000000057C0000-0x00000000057D6000-memory.dmp

Filesize
88KB

Download
memory/3676-12-0x000000000C010000-0x000000000C0AC000-memory.dmp

Filesize
624KB

Download
memory/3676-7-0x00000000057A0000-0x00000000057BE000-memory.dmp

Filesize
120KB

Download
memory/3676-11-0x0000000008EF0000-0x0000000008F6C000-memory.dmp

Filesize
496KB

Download
memory/3676-3-0x0000000005360000-0x00000000053F2000-memory.dmp

Filesize
584KB

Download
memory/3676-6-0x00000000055F0000-0x000000000568E000-memory.dmp

Filesize
632KB

Download
memory/3828-55-0x0000000005480000-0x000000000548A000-memory.dmp

Filesize
40KB

Download
memory/3828-56-0x0000000005490000-0x000000000549C000-memory.dmp

Filesize
48KB

Download
memory/3828-57-0x00000000061D0000-0x00000000061EE000-memory.dmp

Filesize
120KB

Download
memory/3828-48-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/3828-58-0x00000000061F0000-0x00000000061FA000-memory.dmp

Filesize
40KB

Download